Today I plan on removeing the 5spd ,bell housing ,clutch assy.and flywheel on the MJ , then its a lot of cleaning and I will probably replace rear main since its down that far. I found a 87 XJ with an auto and 231 to swap over ,have already pulled wiring harness for trans out of the xj and will begin that removal next, my friend has a matched set of 410s out of an 86 { no vaccum disconnect} he said I could have for this project the front is a d30 and the rear is a d35, I know its a lot of work to make the d35 fit but the price is right and they are in good shape. The spring over takes care of the lift in the rear,and the spring pads needs to be moved for the MJ anyways . Here goes wish me luck