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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Question for Yogi
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Wed, 05 June 2002 13:37
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yogi, what have you done to your diff/drive shaft to stop them shredding the moment you try and use your 350+ horsies, and how much did it cost? 
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Question for Yogi
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Thu, 06 June 2002 11:07
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I'm using a 4ag turbo in my ae86, and I used a borg warner 78 LSD (commodore, falcon, r31, etc. etc. etc.), and a 1 piece drive shaft that hopefully won't shred in a hurry.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Question for Yogi
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Thu, 06 June 2002 13:02
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what was the cost of all that?
the 1 piece shaft in particular, and did it fit with some "massaging", or did you need to redo the whole line?
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Question for Yogi
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Thu, 06 June 2002 14:04
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The shaft was $198, i took the front half of my old shaft and a new commodore uni joint that the diff guy gave to me to a driveshaft guy, he supplied a new piece of pipe, made the shaft and balanced it. No problems with fitting at all, plenty of clearance everywhere.
The diff is basically a modified r31 skyline LSD (4 pinion). I couldnt find a skyline LSD at the time, so I bought an open 4 pinion one and also a clubsport diff, and gave it to my diff guy, he then rebuilt it all with new bearings, welded on the suspension brackets for the ae86 and straightened the housing, narrowed it just a little bit which resulted in the perfect width, (but didnt need messy and expensive axle resplining), and fitted new 4.11 gears. It bolted straight into the car without any hassle, only had to make handbrake cables. Cost was $910 for the diff guy, plus $500 for the clubsport and skyline diff, so about $1400 + tailshaft. You're welcome to have a look at it anytime (if you live anywhere near me that is!) 
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Question for Yogi
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Thu, 06 June 2002 14:26
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well, I'm in sydney, but I do visit melb quite regularly, so next time I'm planning a trip I'll msg ya
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Question for Yogi
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Fri, 07 June 2002 13:19
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Also I'm coming to Syd in a couple of weeks, maybe we can find each other sometime while I'm there??
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Question for Yogi
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Fri, 07 June 2002 13:35
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come to a club meeting, or else just send me an e-mail closer to the date.
my memory sucks, but remind me a few days before and I'll work something out
Buisness or pleasure?
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Question for Yogi
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Fri, 07 June 2002 13:41
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Yeah, I'd be keen to come to a club meeting, I'll try and remember to send you a message ICQ or email me sometime soon maybe.
I'm coming for pleasure (yay!), just for the sake of going for a little drive, drop in and visit a few people, and see whatever else tickles my fancy along the way... (Skydiving was an idea that had crossed my mind, if I'm feeling suitably rich at the time  )
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Location:
Sydney Australia
Registered:
May 2002
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Re: Question for Yogi
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Mon, 10 June 2002 14:19
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Is the man himself going to answer the question.. I'm keen to know too cause my diff is dead!
Luke
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Question for Yogi
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Mon, 10 June 2002 16:34
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that's what I'm beginning to wonder!
as if the topic isn't a big enough giveaway 
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Location:
Sydney Australia
Registered:
May 2002
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Re: Question for Yogi
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Mon, 10 June 2002 16:42
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I know that my sprinter diff's were the same as the TA diffs... man they used to just go BOOM!!
Pretty sure he has a 9 inch under it... but i'll let him reply for sure. Looks fat from behind though.
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Club Member
Location:
sydney
Registered:
May 2002
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Re: Question for Yogi
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Tue, 11 June 2002 06:05
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I believe he has a commodore diff, but he has still twisted the axles and busted the diff in that a couple of times if I am not mistaken. 
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Location:
Newcastle
Registered:
May 2002
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Re: Question for Yogi
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Tue, 11 June 2002 06:59
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G'day,
Yeah i am pretty sure it is a VK commodore diff....
And i think he has broken it a few times...
goes to show commodore parts really arn't strong enough for REAL celicas!
cheers
Stew
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Location:
up yours!
Registered:
May 2002
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Re: Question for Yogi
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Tue, 11 June 2002 08:32
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Hey some of use have 9 to 5 jobs round here! well iam here now!
diff is a cut down VK calsis disc brake LSD!
diff centre is 4:11 and is shit on the highway, the weakest part is the axels! I am on my third set of custom mades and they dont look happy!
next step is billet( but i am not rich!)
tail shaft is a 3in heavy duty custom, cost about $250 from memory, it uses commodore V8 unis (which i havent changed in 3 years)
Last night we pulled the GZE fly wheel off the motor and found 5 bolts were a fanny hair away from shearing off!(lucky the box blew or the fly wheel would have ripped off the motor at 8G's)
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Question for Yogi
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Tue, 11 June 2002 12:57
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swinging the ball back to luke.... did your cressida come with ther 5M stock?
and if so, was that the same diff as the 5M celica-supra, and how long did it last up against a 1jz?
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Location:
Sydney Australia
Registered:
May 2002
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Re: Question for Yogi
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Tue, 11 June 2002 18:12
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Yeah it came with the 5m and its still going. I havn't blown it up yet but it is getting really loud.
Mind you i have done nearly 20000km's in the last 6 months! good value!
Luke
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Location:
Newcastle
Registered:
May 2002
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Re: Question for Yogi
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Wed, 12 June 2002 07:08
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Hey Luke,
is your diff lsd or open?
Cheers
Stew
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Question for Yogi
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Wed, 12 June 2002 08:06
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Yogi, so you've been using cut down and resplined commodore axles? Also, are you using 2 pinion or 4 pinion (25 or 28 spline) diff centre? My suggestions are to use skyline axles, cos they come in at the right length (with a tiny bit cut off anyway), so no resplining, and a lot cheaper and stronger. Also make sure you're using a 4 pinion diff centre! (look how many dunnydores have chewed up 2 pinion ones...)
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Location:
up yours!
Registered:
May 2002
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Re: Question for Yogi
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Wed, 12 June 2002 11:42
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mrshin!
I wish it was that easy!
the diff is 20mm shorter each side then a standard TA22 diff (cause of the tubs!)
and yes it uses a 4 pinion centre
thanks anyway for the info
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Location:
Sydney Australia
Registered:
May 2002
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Re: Question for Yogi
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Wed, 12 June 2002 12:20
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Mine is an open centre... its fine in a straight line. It always spins 2 and i've never taken off on a run and spun one. Coming out of corners is a different story 
Luke
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Question for Yogi
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Wed, 12 June 2002 12:43
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Ahhh, tubs... No bloody wonder you're breaking stuff
Also you can get a KAAZ centre for the borg warner diffs, maybe that and some billet axles might be necessary for you to stop busting stuff? And maybe a Jericho box too 
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Location:
ACT
Registered:
May 2002
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Re: Question for Yogi
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Wed, 12 June 2002 13:02
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I have NFI about you guys are talkin about, mainly cos i don't know anything about diffs.
Anyway, i am also thinking about diffs because the 1g in my sprinter is going to give out a lot more horsies soon. I have the sprinter LSD, but i heard that the center is crap!
So my question is, can i just change the center or do i need a whole new rear?
Target hp is 400. What are my options?
Any help would be great
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Question for Yogi
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Wed, 12 June 2002 13:26
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talking of diffs, can anyone tell me how much an RA65 diff can take, and how much an MA61 diff can take? more importantly the MA61
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Question for Yogi
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Wed, 12 June 2002 13:32
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that 400 horsies, that rear wheel?? 
Sell the LSD you've got while its still alive, cos people pay good money for those things.
You'd probably be best off doing what I've done with mine, get an r31 skyline rear end (LSD from a silhouette or if you cant find one, buy an open one and get an LSD from a commodore/falcon - make sure its 4 pinion!), shorten the housing slightly, cut a little bit off of the axles, attach brackets, straighten, and get a tailshaft made to suit.
Where abouts you live? Welcome to have a look at mine any time. 
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Question for Yogi
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Wed, 12 June 2002 13:45
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Draven, your RA65 should have the same F-series diff as the MA61, just minus the LSD. If its in good conditon, the diff should be strong enough for more thana few hundred horse power, some of the Mk2 boys have 7MGTE's they had modified and the diffs are holding out pretty well.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Question for Yogi
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Wed, 12 June 2002 15:31
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sweet
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Location:
ACT
Registered:
May 2002
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Question for Yogi
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Thu, 13 June 2002 10:52
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Far as I'm aware, there's no particularly strong diff centre made by Toyota for the ae86 diff housing. There are aftermarket ones, KAAZ and such, that are pretty strong, but cost as much/more than doing what I suggested anyway. Also, theres the issue of the axles - those tiny little things aren't really gonna like having a massive punishment dished out to them too often. Likewise the brakes - the ae86 discs aren't exactly something you'd wanna use TOO much, while the drum version is, well, drums (although the handbrake works a helluva lot better than discs while they're cold!)
Just tryna suggest the cheapest option for you in the long run, rather than munching a whole pile of little diffs!
Don't compromise on anything in the driveline and you'll thank yourself later - just have a look at me and clutches...
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Location:
ACT
Registered:
May 2002
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Re: Question for Yogi
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Fri, 14 June 2002 10:11
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Mrshin,
If i do what you suggested what happens to the stud pattern and offset. Does the skyline r31 have the same pattern?
cheers
Ash
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Question for Yogi
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Sat, 15 June 2002 11:04
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With the wheels I'm using (16" ones from the trading post) the offset works out perfectly, with the slightly wider diff just filling the tyres out to the edge of the guards nicely (and stopping them rubbing on the inside like they were!) Make sure that when you get your diff made up, you get it narrowed as much as the stock axles will allow though, otherwise it'd probably be a tiny bit too wide.
The stud pattern is the same, one reason I chose this diff in the first place. My old man drives an R31, so I took to it one day with the measuring tape and found everything to be pretty good, so I went and bought the diffs, did as much as I could myself then went to my diff guy (Barry from Trans Diff in Bayswater) and he did the rest.
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but i meant at the flywheel! 