What mods for my 904 when using the BPE 408?

and a little more room to hook things up is nice too. what gears in the rear?

It has the super rare, a-body 8.75 with a 3.23 sure grip center section. It originally had a 7.25 peg-leg. I was lucky enough to pick one up for just $550 from a local Mopar guy. He even threw in a just right rear disc kit with it and a set of large bolt pattern Yukon axles.

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