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Location:
perth
Registered:
October 2004
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gearbox conversion problems
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Thu, 21 October 2004 14:56
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hey Ive got a 1990 hilux, with a 2y (1800cc) engine and a four speed gearbox.
Now Im guna try and kill two birds with one stone, my clutch slips often and im prety sure that its because of a leaking rear crankcase seal, or pressure plate needs replacing.
When I bought the ute I was given a recon five speed with it and I wanta chuck that in, Ive been told that Im guna have to change the clutch and pressure plate.
But Ive also been told that I might have to replace the starter and that the spline is different and the tailshaft will need to be shortned as well.
Has anyone done this conversion, or dose anyone actually know what Im in for??
Thanks
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Location:
Perth
Registered:
July 2004
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Re: gearbox conversion problems
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Fri, 22 October 2004 07:40
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what gearbox is it? the g52 or r151?
shouldnt have to replace starter unless you are replacing the flywheel aswell.
im my experience it pays to get pressure plate tested/replaced, new clutch plate and the flywheel machined. make sure you do all of these otherwise it may just fail on you again.
Spline difference? are you talking about the tailshaft spline or the spline that comes out of the front of the box?
if you want to work out the difference in ratios check this site out http://www4.tpgi.com.au/users/loats/technical/ma61 /gearboxes.html
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Location:
perth
Registered:
October 2004
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Re: gearbox conversion problems
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Sat, 23 October 2004 01:43
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hey cool link.
I cant see either of ny gearboxes on it.
I was guna post a pic of it but my webspace isnt play the game.
I was meaning the spline from the flywheel.
Maybe a stupid question but does the clutch and pressure plate have to match to the flywheel(motor) or the gearbox?
may just pull it out and see what happens. What do you think the concequences will be it the clutch and pressure plate are wrong and I try it out? and how will I be able to tell if I need a different while its all dismantled?
Thanks for your reply
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: gearbox conversion problems
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Sat, 23 October 2004 02:10
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off the vehicle ID plate, can you give us the "gearbox/tranaxle codes" please? From that its easier to establish what you can and cant do.
also, are we talking 4WD or RWD?
The clutch itself has to match the spline of the input shaft of the gearbox. Luckily most toyota gearboxes share the same splines (either of two sizes, big or small in most cases).
The clutch diameter must match the flywheel, the flywheel is specific to the engine, and the pressure plate matches the clutch.
I hope this clears things up for you 
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Location:
perth
Registered:
October 2004
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Location:
Brisbane
Registered:
May 2002
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Re: gearbox conversion problems
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Sat, 23 October 2004 10:23
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What material is the casing made out of - steel or alloy? If you're not sure grab a fridge magnet and see if it will stick.
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