I'm doing a 2wd to 4wd conversion on my mj and i need to know what length front drive shaft to use with it it has a 4.0 ,automatic trans and a 231 t case dana 30 front i did another conversion a while back and used a driveshaft out of a 4.0 5 speed 231 equiped mj it was a little short so i figure there are different size driveshafts for different equipment :cheers: