Help ... Rear-End interchangability

[G_Ride]

Ok, I apologize up front for posting a VAN question in a Pickup truck forum, but i have queried the world wide web with all types of key words in my quest for answers

I have a 93 G20 with a howling 10bolt that needs to be replaced (rebuilt)... I would rebuild it but whats the point if i can find a 12 bolt or other rear-end that would cost about the same(maybe a little more) to rebuild but last 10 times longer

So, I am wondering if a C-series pickup truck rear-end will bolt into a g-series van. I can fabricate new spring perches/shock mounts if need be but would much rather find a bolt in type replacement