84 step side, how wide will fit?

[84shortbed]

I want to lower the truck either 4/6 or 5/7 but I also want to run a 295/50/15 in the rear on a 15x10 rim. I`ve seen this on a earlier truck but not as low. will it fit and what backspacing will I need?

[got2haul]

Check out my entry on this thread.  It's one of the last entries.  It might answer your question.

http://forum.73-87chevytrucks.com/smforum/index.php?topic=9295.0