ok what is the biggist 15 inch wheel/tire combo that will fit under a 69 road runne with out relocating the springs or mini tubbing? not against useing a differnt housing that has a shorter width and moving spring perches but i will not move the springs
would a 295 50 15 on a 15x10 rim fit?
this is for a buddys car
also if anyony one knows off the top the width of a a body 8 3/4? will that work under there in any way???? or no?? the car has no rearend under it at all right now so will have to buy something lets hear/see you combo,s please

Lots of folks run a 295/50 on a 10 with no problem. Just make sure you get your backspacing right on the rim... typically 5 to 5-1/2. You'll have to check your own clearances for that.

As far as the axle info is concerned... take a look over here at MyMopar.com
http://www.mymopar.com/Mopar8_75RearEndGuide.htm

Is it a stock width 69 b-body rear? What back spacing would we have to run for the 10" rim to fit? And is there a different width/body rear end that will help the backspacing.