Does anyone know if a diff off an XD falcon would fit into an XR falcon or is the wheel base different?

the wheel base wuld be different but i doubt it be hard to fit.. all u would need to do is welk the Xr falcon mounts onto the XD diff

Ive got a LSD hemi that will bolt straight in if you want it. it will save you welding on mounts and you can re ratio it later if you want to

the track changed from XY to XA-onwards, so the XD diff will be physically wider, but it can be compensated by using wheels with a different offset

i'm not sure about the rear spring spacing from XR-XD, but i'll put money on XR's being narrower

the wheelbase wont affect the fitting, wheelbase is the distance from centre of front axle to centre of rear axle