I guess I should revise my answer. I am sure it could be done. With the right spacer. If you have the means to make one yourself, then it may be worth it. Otherwise, You will have to pay a machine shop to do it. Personally, i would just sell the factory 4.88 diff all together and buy some new gears from Marlin. It will be easier and then you dont have a 1 off spacer, and custom bolts to deal with.