I am thinking about converting my truck to the small bolt pattern. I have a 8.25 rear end in my 1985 D100. So, any thoughts?

 

I'll sell you mine, in a couple months.

 

Sweet! Let me know.

 

OK. I think it's a 7 3/8's, 3:55 gear. The front hubs will go too.
I want to put the 4bta Cummins into mine, which will require a stronger rear axle. I planto start tearing it down this fall (I'm driving it now) and cleaning/repainting the frame, and everything else. I want to go to a bigger pattern because I expect to run a Ford 9" rear, and want to match the front.

 

Just re-checked. It's a 8 3/8's 3:55.