hi guys i swapped my gbox from a ty752vb3ca to a ty754vn1aa i had a look on the gbox chart but there is no info on the model 754 i installed unless its the same as the previous models above it in the chart can anyone clarify if i need to change the rear diff or will the car be ok as it is?
many thanks
nath

 

No, it won't be okay at all. Run that box with your existing rear diff and you'll break the centre diff very quickly..

For what it's worth TY754VN1AA is off the MY99 Impreza Turbo 2000. It has a 3.9 front diff and 1.1:1 drop gears so needs a 3.545:1 rear. Your current one is a 4.11.

 

thats ok the lad i got the box off has the diff to go with it i just needed to find out just trying to save meself some work cheers splitpin