weld prostars

zx809

Amateur Racer
Apr 10, 2010
175
0
0
ont canada
im looking at a set of weld prostars 15x8 with a 3.5 backspace for the rear will a 275/60 fit in with no issue or should i run a 255/60 also can you run a 8 inch rim on front and what back space to use there or should i run a 7 inch
 

rsh4364

Dragway Regular
Aug 12, 2011
744
0
0
greensprings,ohio
I have a 79 Bu,1 inch lowering springs, I bought prostars 15x8 with 3.5 bs for rear and 15x6 for front, I put 275-60 goodrich drag radials on and they rubbed bad so then I bought 255-60 M/T ET street slicks and they rub on hard bumps only and if I air up my bags they dont rub at all..Recently I took welds off for winter storage and put the 275-60s on some old S-10 alum. 15x7s and they fit perfect and look so much better than the 255s,If you can find 3.75 or 4 inch BS thats what I would do.I recently picked up some prostars with 4.5 bs as im gonna notch frame and try and get 295-50x15s tucked inside,If you can find out what factory bs is on 93 s-10 alum.15x7s go with that bs..because the 275s fit so well I regret buying notch kit and 4.5 BS wheels ..
 

LS6 Tommy

MalibuRacing Junkie
May 15, 2004
15,847
1
38
North Jersey
275/60's aren't designed to be on a 7" wheel. It minimizes bead contact too much.

Tommy
 

rsh4364

Dragway Regular
Aug 12, 2011
744
0
0
greensprings,ohio
The 275x60s on 15x7s are just my winter storage unit setup I dont run them, even tho the 275s had never been mounted they were 7-8 yrs. old and nobody would buy , so storage tires now, My point is the 15x8 with 3.5 BS didnt work out for me but these S-10 wheels fit the tire inside wheel wells nicely, would still like to know backspace on these S-10 wheels as it would have saved me some money,
 

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