| Author | Topic |
|---|
Location:
ballarat
Registered:
April 2003
|
 ra28 lsd
|
Tue, 19 August 2003 00:39
|
 |
hi
and before you ask, yes, i have searched the forums to get more infomation about this.
after a recent motorkana, my dad said looking into getting an lsd for my ra28 could be worthwhile, for more traction on the dirt, and still be able to drive it on the road.
from what i have found out, my ra28 would have a t series diff. from this web page (http://ourworld.compuserve.com/homepages/stepho/di ff.htm) it says that an f series diff is lsd (7.5", 3.909) and it was an option on an ra28.
is this correct? will it be an easy job to put it in my ra28? are they easy to come by?
another page says the f series diff comes from an ma46 and ma67, what do you think my chances are of picking up an lsd one of these from a wreakers?
thanks for any input
evan
|
|
|
Location:
Cabramatta, NSW
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 01:09
|
|
From what info I've scoured from others on these forums, you want an F series out of an MS112 or Corona MkII.
I think the MA4x has a T series? Not sure, but it should bolt straight in whether it's a T or an F. Been told that LSD is pretty rare in these.
The MA6x is IRS so no chance unless you want to do a LOT of fabrication...
|
|
|
Location:
Canberra
Registered:
September 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 01:09
|
|
F series come in both open and slippery.
T series also come in both. I beleive there's a couple of centres for sale on the "Parts For Sale" forum ATM.
Trent
|
|
|
Location:
Canberra
Registered:
September 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 01:11
|
|
Max,
I'm pretty sure the MA45 had a t series and the MA47 had an f series.
They do not bolt straight in. It's close, but not bolt in....
Trent
|
|
|
Location:
Gold Coast
Registered:
October 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 01:13
|
|
|
i always thought the gt had a different diff setup to normal celicas and had the lsd. Good luck finding one though. People use modified hilux diffs which are stronger, heavier and have big ass drums on the rear. i also know that they are easy to get different centres in them. companies like ARB make various centres and im sure performance/engineering shops make lsds and differentratios they are on quite a few high powered small cars out there.
|
|
|
I supported Toymods
Location:
Perth
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 01:16
|
|
|
Depending on how much power you want, an F-series would probably be a good bet. From memory the MS112 diff comes with discs, and an F-series diff has a heap of aftermarket centres as they are the front diff in the Hilux.
|
|
|
Location:
Cabramatta, NSW
Registered:
May 2002
|
 Re: ra28 lsd
|
Tue, 19 August 2003 01:16
|
|
| trent_kershaw wrote on Tue, 19 August 2003 11:11 |
I'm pretty sure the MA45 had a t series and the MA47 had an f series.
|
Now that you mention it, I seem to remember being told something like that too.
| trent_kershaw wrote on Tue, 19 August 2003 11:11 |
They do not bolt straight in. It's close, but not bolt in....
|
Ah. OK. Always thought it was a straight bolt in.
|
|
|
I supported Toymods
Location:
Perth
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 01:17
|
|
|
I think it is for an RA40 or RA60, at least thats what I vaguely remember being told when I looked into it.
|
|
|
Location:
ballarat
Registered:
April 2003
|
 Re: ra28 lsd
|
Tue, 19 August 2003 01:27
|
|
cool, thanks for the info guys, and i will check the for sale forum.
|
|
|
Location:
Cabramatta, NSW
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 01:38
|
|
| justcallmefrank wrote on Tue, 19 August 2003 11:17 |
I think it is for an RA40 or RA60, at least thats what I vaguely remember being told when I looked into it.
|
Hmm... You might be right.
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 01:42
|
|
|
does anyone know if the f series diff would bolt straight on?
|
|
|
Location:
c'town, NSW
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 01:45
|
|
MA45 = T disc single spinner
MA46 = F disc single spin or LSD
MA47 = F disc single spin or LSD
RA45 = F disc single spin or LSD
|
|
|
Location:
Perth
Registered:
May 2003
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 01:56
|
|
MX13 F series ~ cherps thirds 
|
|
|
Location:
Canberra
Registered:
September 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 02:05
|
|
| trent_kershaw wrote on Tue, 19 August 2003 11:11 |
They do not bolt straight in. It's close, but not bolt in....
|
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 05:35
|
|
I believe it's the position of the trailing arms which needs to be modified. Keep in mind that finding a MA4x will be near impossible since they were never officially sold in this country and private imports are rare. The Crown or Corona MkII is a better option if you want an F series diff.
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 05:46
|
|
thanks norbie
so, i think i have two (easiest) options:
1. get a T series LSD centre, stick it in my current diff housing
2. stick an F series LSD complete rear axle in, adjusting the position of where the trailing arms connect to the axle (if i can find one)
okay, next step, how to find these diff(s).
i read on one of the forum threads that the model codes for these diffs are:
[series][ratio][lsd or not]
ie,
T295
can someone please clarify what number the ratios corespond to? also, if i am looking at cars at the wreckers, is this model code located somewhere on the dff/axle?
thanks again
evan
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 06:09
|
|
The axle code is located on the build plate, usually rivetted to the firewall or inner guard in the engine bay. A complete explanation of axle codes can be found here:
http://www.geocities.com/MotorCity/Pit/9975/dataBy Subject/AxleCodes.html
I'd recommend sticking with the T series for a NA four cylinder engine unless you're really rough on your car (eg lots of burnouts, flat-changing etc). Forced induction will kill a T diff pretty quickly though, so an F series conversion is the way to go.
Note that you're unlikely to find an F series live axle with an LSD, so you'll have to source an LSD centre separately and swap that in. A variety of aftermarket F series centres are available since (as mentioned above) 4WD Hilux's use an F diff. You can get spools, mini-spools, air lockers, clutch LSD's, torsen LSD's, you name it!
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
|
Location:
Perth
Registered:
November 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 07:04
|
|
This is a great topic. I know I might be hi-jacking abit, but ra23 is basically the same, so the best hi-po diff would be getting an F-series live axle then swapping in an lsd. This is for a 1G-GTE. I'm trying to make sure I know what I need at this stage 
|
|
|
Location:
Cabramatta, NSW
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 07:33
|
|
Yup, no need for the strength and weight of a G series, unless the 1G is really worked.
Here's a couple of questions, where would you get a T series LSD? And once you turn one into a single spinner, can you rebuild it's LSDness? 
|
|
|
Location:
Canberra
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 07:53
|
|
So has anyone here swaped in an F series LSD centre? im still after one! But havent been lookin that hard i must admit.
If anyone has, id love to know what was involved in doing the swap.
|
|
|
Location:
Canberra
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 11:01
|
|
Dylo, how you going buddy. I have done an "F" series conversion into my RA23.I used the following, and yes all the brackets had to be relocated.
MK11 Corona housing and axles, RT141 Corona Avanti disc brakes. The LSD centre came from an MA6X Supra.
regards Chuck
|
|
|
Location:
Newcastle
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 22:44
|
|
Hey Dylo,
Don't waste your time mate....
go the volvo diff...
Cheap as to buy, have discs,
don't need to be cut down, tailshaft is the right length
have good ratios easly available, strong as, plus they are the same as the front end of a jeep so there are heaps of after market centre options available...
air lockers, torsion centres etc.
mine only cost $500 to have the mounts moved and the stud pattern changed. Add about $100 for the diff to start with...
you do the maths!
Cheers
Stew
|
|
|
Location:
Cabramatta, NSW
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 23:32
|
|
|
Which Volvo is this?
|
|
|
Location:
Newcastle
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 23:38
|
|
all of the 2 series....
same as i had in my car at dubbo...
|
|
|
Location:
Oakland, California USA
Registered:
August 2003
|
 Re: ra28 lsd
|
Tue, 19 August 2003 23:49
|
|
Hey guys, I am new to the forum and have some questions regaurding this thread:
Basically, when changing from a stock diff to an LSD, is it sraight foward? I was reading 'Changing a Diff Centre - for 1st timers' in the article section and am thinking on getting the LSD from an ae86 and dropping it my ra29 (american ra28 - 20R motor, W50 tranny, etc.,).
Do I have to shorten my axles or will everything bolt up? Also, when doing a job like this, must I line up specific teeth when 'bolting' the gears back up? Is it as 'easy' as it sounds (Changing a Diff Centre - for 1st timers)?
Thanks all,
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 23:53
|
|
|
hey cs01_510! (from www.classic-celica.com?) hows it goin?
|
|
|
Location:
Cabramatta, NSW
Registered:
May 2002
|
|
Re: ra28 lsd
|
Tue, 19 August 2003 23:59
|
|
| TOY77 wrote on Wed, 20 August 2003 09:38 |
all of the 2 series....
same as i had in my car at dubbo...
|
Eh? 2 series Volvo?
|
|
|
Location:
Terrigal
Registered:
May 2002
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 00:05
|
|
Hey Stew, do you know how heavy these volvo diffs are? Also, roughly the size of the ring gear? 7.5" 8" etc?
Many thanks!
Joel
|
|
|
Location:
Oakland, California USA
Registered:
August 2003
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 01:44
|
|
Oh, ehendrikd, wassup, what was your Classic-Celica forum name? The same? ehendrikd? Whats your name again? haha sorry, I forgot.
You read my question? I have asked it b4 in CLassic-Celica, but I have been going to a couple of shops and they told me aftermarket LSDs like KAAZ, TRD, etc., can be installed into the RA28/9 rear-end w/o shortening axles and stock ae86 LSD you need to shorten a specific length. What is the length?
Thanks again,
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 01:47
|
|
I was under the impression that LSD centres to suit Ovlov's are expensive and/or difficult to find. A friend of mine is a bit of a Ovlov nut with a couple of 242GT's, and I got that impression from him...
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 01:56
|
|
cs01_510: i'm very new to the classic celica - lsd caper, so i'm afraid i can't help you much, but:
i have just been doing a little research and i think that LSD centres from 83->85 ae86 corolla/sprinters can be put in the standard t series diff housing from my ra28. i think if it is from a later ae86, the axle is 1mm wider.
from
http://ourworld.compuserve.com/homepages/stepho/di ff.htm:
| Quote: |
T series diffs have 24mm axles before 1986 and 25mm axles after 1986 (I am not sure if the splines are compatible).
|
|
|
|
I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 02:22
|
|
Regarding T series diffs:
RA28 length mounting face to mounting face: 1365mm
AE86: 1405mm
RN25/27 Hilux: 1370mm
both the RA28 and AE86 run a 20 spline axle from memory, someone correct me if I'm wrong (in holiday mode and 3000km from the info - going on memory!). There are minor differences in the boltup on the removable centre, one stud is longer in length on the AE86, but this can be easily changed to place a AE centre in a RA housing.
I have also had a MA45 under my Ra28 to trial fit - the top control arm points need to be moved in along the diff to fit(55mm?- again from memory?), and the diff is physically longer too, affecting wheel placement in the wheel well (An issure for me as I was running 16x8 Simmons with a 245/45/16 tyre).
Re F series diffs:
Never seen one in anything earlier than RA60 style celicas (ie 1982 on), and these cars run longer diffs again. Wayne Stephenson (The guy who has built the site you got your original info from), has been looking for one of these mystery small F series diffs for about four years now, I have a feeling it's more an error in type than a realitiy.
[Updated on: Wed, 20 August 2003 02:23]
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 03:11
|
|
thanks clint
one question though, i'm not entirely sure what 'length mounting face to mounting face' is, and will this difference in size between the ra28 and ae86 be an issue?
thanks
evan
|
|
|
I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 03:22
|
|
|
Mounting face is the surface your wheel sits flat on when bolted up to the hub. There are a couple of different ways to measure track and everyone thinks their way is the right way, so I use mounting to mounting when describing as it's easier to measure and describe for people. Differences in length will depend on wheel/tyre packages, but be reminded changing track (ie length of diff), will in turn affect other factors such as wheel alignment - any good wheel aligner will prefer original track for alignment purposes, regardless of wheel size.
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 03:35
|
|
|
cool, thanks
|
|
|
Location:
Perth
Registered:
May 2003
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 03:48
|
|
So are you saying that nothing before 1980 had an f series diff?
(just a question not a dig)
Because from what i've been told on here is that the mark2's have an f series, i belive they do have an f series or something stroung in there because i havent heard a noise out of it - for a 26 year old car thats pretty good, everything else i've heard/hearing noises from.
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 04:10
|
|
I believe he was talking about Celica's, not Toyota's in general.
FWIW the JDM-only RA28 GT came with an F series diff from the factory. Your chances of finding one of these are, needless to say, pretty slim. 
|
|
|
Location:
Newcastle
Registered:
May 2002
|
|
Re: ra28 lsd
|
Wed, 20 August 2003 09:37
|
|
Hi
2 series, 242, 244, 245, 264, 265 etc from bout 79 to 91 are all the same.
i think it was 75kg with the brakes... bout 15kg heavier than stock.
Don't know bout the wheel size but they have 30 spline axles i think they were 35mm in diam. The guy that did the diff for me was very impressed... reckoned they look like 9 inch axles...
there are heaps of old volvos with v8's and stock diffs...
my dads mate owns a volvo wreckers and said he has only ever solda couple to speedway boys and in 20 years has never heard of one breaking except one that busted something on the start line at bathurst years ago...
Norbie - The factory lsd's are very rare, but the diff is a dana 30 same as the front end of the jeep. i have checked and there are plenty of aftermarket centres, plus i have spoken to a guy that has a couple of race cars with the aftermarket centres.
Cheers
Stew
|
|
|
Location:
Madrid - Spain
Registered:
August 2002
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 03:30
|
|
Hey Stew, are you using a LSD or is it still a single spinner.
From what I have heard, the Dana diffs are really good stuff. They are put behind all the bigger engined US chrysler products, both the Dana 30's and it's bigger brother, I think it is a 40.
|
|
|
Location:
Cabramatta, NSW
Registered:
May 2002
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 04:07
|
|
Any more info on these Volvo diffs?
Width? Do they come with discs?
Sounds very interesting since I can't imagine tracking down a Corona MkII or MS112 would be too easy...
|
|
|
Location:
c'town, NSW
Registered:
May 2002
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 04:09
|
|
there are 2 corona Mk2's in P&P blacktown
and one is floating round a wreckers in campbelltown
|
|
|
Location:
Cabramatta, NSW
Registered:
May 2002
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 05:08
|
|
Hmm... Maybe if I wasn't such a lazy sod and get my arse to Blacktown or Campbelltown... hehe
I might go check them out...
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 05:31
|
|
does anyone by chance know the specific model code for the ae86 t-series LSD?
i'm just taking a guess with T293 or T295
i guess what i'm really asking is what is the diff ratio, and does it has 2 or 4 pinions.
|
|
|
I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 05:43
|
|
|
The first letter in the designation gives you the style of diff, ie T series diff, the next 2 numbers give you the ratio (check Wayne's site for a full list of ratio numbers), and the last number determines if it was fitted with a LSD from the factory. Numbers 2 and 4 mean open centre (2 and 4 pinion respectively), while the numbers 3 and 5 represent LSD designations (again 2 and 4 pinion respectievely).
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 05:53
|
|
|
cool, but i was just wanting to know diff model code for the ae86 to ask the werckers for (i think i just need the ratio. i'm taking a guess that it is a 4.1:1)
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 09:01
|
|
If you give the wreckers an axle code I guarantee you'll get nothing but blank stares in return. Wreckers are dumb bastards.
|
|
|
I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 10:07
|
|
|
True, instead count the number of studs to bolt up the removable centre, S series have 8 studs, T series have 10 studs.
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 23:14
|
|
|
ok, thanks guys
|
|
|
Location:
Montrose, VIC
Registered:
May 2002
|
|
Re: ra28 lsd
|
Thu, 21 August 2003 23:42
|
|
I don't knwow HOW many gearbox places I've been to, said 'W58' and gotten some real odd looks. Actualy, sadly, really sadly, the only exception to that I can think of is Dellows. And I'm sure we ALL know my opinion of THEM 
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Fri, 22 August 2003 03:31
|
|
|
anyone know of any TRD parts distributors in melbourne?
|
|
|
Location:
ballarat
Registered:
April 2003
|
|
Re: ra28 lsd
|
Wed, 19 November 2003 05:02
|
|
hey i know this is topic is a little old, but kristian (aka SUPRA_MAN) has some AE86 TRD 2 way LSDs, and i was wondering if anyone knows if they would bolt straight into my ra28 t series diff? oh and if kristian happens to read this, what condition are these LSDs? I also read in one of your posts that you refund money if the part does not fit, is this true?
thanks
evan
| SUPRA MAN wrote on Wed, 05 November 2003 17:34 |
If this has been sold then I have an AE86 TRD 2 way LSD. $600.
Actually I have a few.
|
|
|
|
I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
|
|
Re: ra28 lsd
|
Wed, 19 November 2003 10:45
|
|
|
yeah will it fit?
|
|
|
Location:
Madrid - Spain
Registered:
August 2002
|
|
Re: ra28 lsd
|
Wed, 19 November 2003 20:52
|
|
|
I heard a rumor that the jap spec sprinter T series diffs were different to the older type T series. Something about having bigger axles and ore splines. That is unconfirmed though.
|
|
|
Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
|
|
Re: ra28 lsd
|
Wed, 19 November 2003 23:37
|
|
i believe the dorifto kids call them "Zenki" and Kouki" (referring to the smaller vs bigger axles)
Yeah its something like a 2mm diam difference in the splines. Personally i would just go out and get an F series diff, then dig up an MA61 or MA70 LSD centre.
|
|
|
Location:
Toowoomba
Registered:
May 2002
|
|
Re: ra28 lsd
|
Thu, 20 October 2005 05:07
|
|
| ChuckLandwehr wrote on Tue, 19 August 2003 21:01 |
Dylo, how you going buddy. I have done an "F" series conversion into my RA23.I used the following, and yes all the brackets had to be relocated.
MK11 Corona housing and axles, RT141 Corona Avanti disc brakes. The LSD centre came from an MA6X Supra.
regards Chuck
|
Hey chuck, are the brakes and LSD centers bolt on? Just a matter of relocating the housing mounts to suit an RA2x or do you have to shorten it aswell? And how bout stud pattern?
|
|
|
sorry, thanx