Thanks all. From what I know the sonoma, s10, blazer, hombre, syclone, etc all used the same axle (except the ZR2 which had the 8.5). Did you know of a specific year sonoma? I missed out on a vega axle on CL that had new s10 shafts and posi for 150 that would have been perfect.
I am thinking about a fbody rear end and just welding on some spring perches and putting on a c-clip eliminator. Just having Mark Williams doing my current axle is probably where I will go I am just the type to research every option as I am budget limited.
If I do decide I need a 7.5 up front I will stuff in the front diff from a colorado. They came from the factory with the 7.5 but there is probably a fair bit of fab work involved.
As far as the motor and controller I am planning 2 phase for the build.
This year is Phase1 only using 2 used Warp9 motors powered by a Soliton1 (or a Shiva if I can afford a used one). I might be just rwd to start depending on ratios and fitment. I may just cut the np208 in half as a simple 2 speed gear box. In low I'd have a top speed of 75 and in high it's around 200.
Phase 2 the front axle will be powered by 2 AC24LS motors belted to the front diff and powered by a hacked Volt inverter to give be 500kW total.
If I go this route then I have more flexibility on the front axle ratio as I have a much higher speed on the AC motors. So I would bolt in a cast iron s10 front diff (if I can find one) with a one piece bravada shafts and a 3.08 r+p.
Kerry