For the WRX`s that had fitted the TY752VB3FA box, what is the next box up that is stronger, i know i need to change diff as well so if your really kind, what is the box and matching diff code ?

Cheers

 

TY754 is the box that will be a direct replacement that is stronger.
More down to the fact that the casing has less flex
VB represents a JDM not Euro/UK spec.

So a TY754VBxxx box.
Some people like to keep boxes and rear diffs together as a set and fit them as a set.
As they have worked and worn together. Personaly I have never botheresd and never had any problems.

Final drive is 4.111

About midway down this chart you will see TY754VB boxes that match 4.111

http://www.gearhack.com/myink/ViewPa...smission+Chart

Cheers
Steve

 

Many Thanks for the input bud, appreciated, so looking at that chart i could fit a TY754VB1AA gearbox from a 99-00 WRX , all gear ratios the same except reverse which on my 752 box is 3.416 and on the 754 box is 3.333.

It says the 754 box uses 8 bellhousing fixing point whereas my 752 box only uses 4, so do you know if the 754 box fits as a direct replacement ( do i just use the 4 fixing points i would use for the 752 box ?)

Cheers again bud

 

No probs

It is a straight swap.
It might need the bottom starter motor bolt hole drilling and a bolt sticking through to act as a stud only.

 

Ok great, thanks for the advice, i can check the startor motor mounting with both boxes off the car so that should make that job easy if i do need to do it i guess