rim backspacing

Hopefully these #'s might help with your figuring:

On my Dart Sport with a 3/4" spring offset kit, I have:

* A-body 8 3/4" w/ 10"x2" brakes & 4.5" bolt pattern Moser axles.
* Stock tubs
*10" rims
* 4 7/8" rear spacing. (Wheel mounting surface to inner edge of rim.)
* 9"x30" Phoenix radials (Actually 9.25" x 29.5" x 12.5" section width.
* Wheelwell lips rolled as much as possible.
* Front & rear trimmed for tire diameter.
* 002/003 SS springs

That gives me about 1" between the springs and sidewall. They sit "just right" inside the wheelwell.

I use to run 10.75" actual tread width slicks (forgot the section width) on 11" rims with the same rear spacing. The extra 1" was to the outside.
It worked but the tires were sticking out just a teeny bit more than I liked.

My wheels are by Holeshot. One nice advantage is that they are a 3-piece wheel and if you decide to make future suspension mods, you can send in the rims and just have the rear spacing changed for a lot less than new wheels! (...or if a part gets damaged, bolt pattern change, etc.)

They are a bit lighter than your typical Weld, Cragar, etc., but more durable and less expensive than the super lightweight (and fragile) Monocoque, Bogart, etc.

Sample prices:
15"x4": $175.50
15"x10": $270.00

Their temporary website is down. But if you would like more info & price comparisons, let me know or call them direct. I can probably email some pics or provide links to some cars that have them.

Holeshot Wheels
6651 South U.S. HWY. 1
Bunnell, FL 32110

(800) 372-4533


* HolePro has 10 holes spaced around the wheel center.
Some clear pics on my website.

* HoleStar basically a star-pattern center.

* Penta-Star has 5 large and 5 small pentastars placed around the wheel center. I have the prototypes on my car now (Not in the pic below.) but they are not ready to take orders or release them until later this year.