Hey guys, I know this has been an on going question so here goes. Hope this helps.
Bolt pattern: 5 x 4.5

Front backspacing with a 15x3.5" wheel: 2.5 backspacing

Rear 15x8" wheel will need a 7 1/4" backspacing.

NOTE:
In order for the Welds to fit in the rear the brake caliper and toe link nut will need to be grind down.

 

so the fronts dont take anything special to make them fit?

 

Not if you run allumastars. They will clear the calipers with no spacers required.

 

i cant find anyone that sells them in a 7.25 backspacing. weld doesn't even list it on their website.

 

Call Summit or Jegs.

 

I saw someone post 1.75" backspacing for the fronts so thats what I bought. What issues am I going to have?

Does anyone know what backspacing would I need for a 15 x 10 rear rim?

 

They won't fit. I tried, but they hit the fender well. You'd have to roll the fender and even then they'd stick out a bit.

 

I've been looking online at Jegs and Summit and can't seem to find Weld Pro Stars in a 15x3.5" with a 2.5 backspacing.

 

Good post !

 

i think you just have to call them. i am going for the prostar XP

 

Which ones are the prostar XP or whats the difference?

 

http://www.weldracing.com/wr/wheels/xp.shtm


click more in the bottom right to see the normal prostar

 

Those look sweet! But I don't see any that are 3.5" wide for the fronts.

 

they dont list 7.25 backspacin either, but you can get that.

 

Thanks for the info...those rims really look good, they're more modern looking.

 

Pro Star 96 series:
15x8 rear with 5.5bs and 4.5bc Part # 927-96-58210 from Jegs
15x4.5 front with 2.25bs and 4.5bc Part # 927-96-54202 from Jegs
You have to do the grinding like ErnieT said, and 1/4" spacers in front, 1/2" spacer in rear to clear drag link (Mr Gasket spacers don't work well because the slotted universal bolt pattern design causes them to shift on launch). Pro stars are a pain in the *** because of the lug-centric design with floating spacer. Also you need 3" extended lugs.

Major problem with 96 series XP is you can't get them in 15x8.

Jegs is actually cheaper than Weld's website.

 

Here is my combo:

Front
Magnum Drag 2.0 - 786 Series Wheel
15'' x 3-1/2''
5'' x 4-3/4'' Bolt Circle
1-3/4'' Rear Spacing

Rear
Magnum Drag 2.0 - 786 Series Wheel
15'' x 10''
5 x 4-3/4''
6'' Rear Spacing
26/11.5/15 ET Street


I also run Wilwood brakes and Feec wider fenders/Feed quarter panels so this doesn't really apply to everyone

 

I made a mistake guys. I have 15x4.5 not 3.5" wheels, but if you get the allumastars they make them with the correct backspacing (2.5) that no spacer is needed. They are pricy though.

 

Hey Dan you mentioned you needed 3" extended lugs, but what size?
10mm, 12mm??
Thanks

 

I run Bogart D-10's

15x3.5 with 1.75" bs
5 x 4.5

15x10 w/ 6" bs
5 x 4.5

Aerospace brakes with front and rear wide fenders.

Lot's of work but looks pretty good imo.

 

Sorry for the delay in response, I've been REAL busy trying to get the car ready for FL, and have been having computer issues at home. If I remember right you need 12mm x 1.5 or 1.25 thread, I don't remember for sure, its the same as the stock lugs size and thread pitch. They used to be hard to find, however, Ari at Rotary Performance used to know where to get them, and he may even still have some, I'm not sure. Here is the number to the shop if youy like: 972-530-3335. I will look back in my logbook and see if I can find out for ya.

 

I believe there 12/ 1.25 the are avaliable at most parts stores.

 

Thank you for the information. When I changed out the lugs, it was 4 years ago, and you couldn't find the right studs.

 

Stock lugs are 12 x 1.5 and the extended studs are available thru ARP but hard to get. Ari is the best i found to get them. I actually drilled all mine out to slightly larger studs.

 

ernie are they 15x4 or 15x4.5?? fronts
Greg