Only the front sub-frame on the Astro is separate. It is a uni-body vehicle (think early Camaro/Firebird).

The Astro AWD Tcase and the engine is the same as that of the Bravada - full time 4x4. So, the engine and trans can be a donor. The down side is that it can not be converted to part-time 4x4 without a standard S-10 part-time T-case

I myself would use the Astro Engine and trans if you have it, then swap solid axles under the 52 and build a 4x4 using the stock frame (like the NAPCO's) vs dealing with an S-10 frame swap.

The ZR2 S-10's did have a 9" 10-bolt from the larger vehicles (hence the wider track width).

If your intent on a frame swap, the Dakota frame has the right track width and the steering doesnt interfere with the radiator.


The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me