GM 12 bolt and turbo 400

[t3intercooled]

I have a built GM 12 bolt and turbo 400 out of a skylark would that fit in an 87 gn and if not what would need to be done to make it fit

 

[BrownLimited]

Try this thread. Will an a-body rearend fit into a g-body? - V8Buick.com
I put a 12 bolt from a 69 Chevelle in a 78 Malibu.

 

[49-blues]

what legth is the driveshaft for the 400/12 bolt combo?

 

[turbofish38]

I did the 8.5" swap from a 72 Skylark going on almost 15 years ago. I used a kit from HPMotorsports. The toughest part was welding in new spring perches and lower shock mounts. I was able to use my stock driveshaft. I don't have a clue what length is needed for your swap. Here's a pic of how my GN looks with 10" wheels on the back. I would guesstimate I have about $750 wrapped up in the swap including the price of the wheels. If you need more info on my swap just let me know and I'll post the details.

 

[charlief1]

I have an A body rear that I was planning to put in mid as well. Eric, please post the info for all of us. Thanks for the link BTW.