Are all Hijet diffs the same?

Hello All

Newbie here. Just bought a 1.3 16v 1999 in a bit of a state. Driving it home put a big smile on face though!

I've bought it for a project. I'm going to take the body off and mount a piece of kit on the back. It will only go quite slow and will be off road. I want to add a second rear axle so that it has 4 wheels that drive and 2 that steer. What I could do with knowing is whether I use any rear axle or if I need one from the same model as they need to have the same diffs.

I know this will seem a bit of an odd thing to do but bear with me! Once I've done it I'll post some pics!

Joe

I think the 1.0l is a different ratio than the 1.3l (but don't quote me on that!).

We changed out an axle from the 660cc to a 1.0l one and the gear ratio was alot different, So I would presume the 1.3 will have the same effect. We did put a gearbox from a 660cc to a 1.0l van and it never effected the gear ratio.