that 10 bolt is a little tuffer than most think with street tires. add some slicks and 450HP to stress test it. maybe not so much.

you can swap 8 3/8 axle for the SBP axles

but 8 3/4 or D60 would be best bang for the buck in the long run.

is a narrower than stock truck axle out of the ? for your project?

my stock 72 4x4 truck 8 3/4 is 59" flange to flange (same as a C-body)

I have a 67 polara 8 3/4 that is 55 1/2" flange to flange with 30" axles with SBP. this will tuck a set of 10" rims in nicly with some nice fat M/Ts