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]

650 NM is 480 lb/ft?

I know a couple of guys that run rallys with their Celicas.
One has right about 600 lb/ft.
The only thing he's broken is his rear diff, and that's because he welded it.

Dunno :shrug:
I'm not trying to be an ass, I've just never seen someone break these.
I hope you sort it out.

[Wolf_tm]

650 NM is 480 lb/ft?

I know a couple of guys that run rallys with their Celicas.
One has right about 600 lb/ft.
The only thing he's broken is his rear diff, and that's because he welded it.

Dunno :shrug:
I'm not trying to be an ass, I've just never seen someone break these.

And I hope you're right !!!

PS: rallying on an off-road surface is not going to be so hard for a gearbox, even with 600lb/ft...