4wd transmission proplems, broke gearbox then diff and transferbox updated with broken gear selec Options

[tufy]

2 months ago i broke my gearbox, because i coulnt find stronger gearbox for daily use, i installed a 2nd hand standart gearbox which was slightly shorter... after i installed this g.box, traction of my car was more like front wheel drive.. (%60 front and % 40 rear. thats what i feel). then when i make a quick start i started to feel that rear diff. is slipping gears. after 3000 km i break my rear differential.
does anybody knows if ratio of g.box diff ratio and rear diffrential ratio change it make diff stress and broke easier. or my diff. broke from too much power.
simply;
does it make proplem in a 4wd car if i have shorter ratio gearbox without changing diff..
sorry for my bad english. and thanks for your help.

This post has been edited by tufy: Apr 17, 2007 - 9:49 AM

[alltracman78]

WTF are you guys doing to break these?!!!

I haven't heard of anyone breaking the trans from too much power.
Or the rear diff for that matter....

To answer your original question, there is only 1 stock trans available for the AWD Celica that has different gear ratios.
It's the homologation version found in the ST185s.
All the ST165s, all the ST205s, and the regular ST185s all have the same gear ratios IIRC.
And while the homologation version has different ratios [1,2 and the final drive only] the output from the T case for the propellor shaft is the same as all the others.
The rear diff from them has the same ratio as the others as well.

Front/rear split should be the same, unless the viscous coupling for the center diff is damaged. It's actually an open diff, but the viscous coupling attached to it makes it act like a LSD, except for some early 87 ST165s that had a pushbutton center diff.