How much grinding has to be done in order to run 15" rims (for race use) on an 02 silverado? Just wonder what I should use for slicks at the track.

 

I tried grinding one of mine today. I want to use a 10x15 steel wheel with a 5.5" backspace so I can use a 30 x 10.5 slick. I ground over 5/16" off and it looks like another 1/4" needs to come off to have any clearance. I gave up and decided the caliper was getting too thin for me.
I took my 15x10 wheel and placed it on my 2005 truck with rear drum brakes. It cleared with 3/4" to spare all the way around. I compared the two rearends and they will interchange perfectly. The drum rear will not need as much pressure in the 02. I'm going to see if I can find a proportion valve tomorrow so I can make this swap in mine.
The nice thing about running 15" wheels is that just about any size slick or drag radial you want is available.

 

I'm running 15's on my '01. I ground and relocated the calipers by slotting the mounting holes. Then I made some half round pieces to fill the gap in the slot. I'm running 15 x 8.I can't find 15 x 10 wheels with the backspacing needed to keep the tires under the truck.

 

Twobit doesn't have 15's on an '01. That would be me.
He logged in on my pc, I should have checked his pm's. LOL

 

oops!!!

 

If you can post some pics because I'm sure a lot more people would like to know how you did it. I am one of them.

 

Yep me too.

 

yea I just do not want to put all kinds of time in effort in it if it is not worth it.

 

I was going to order some 15's for my 93 2500, kind of like the 454SS rims. Do I need to grind anything to make them fit?

 

just a suggestion. have you ever thought about doing the stock 16' alloys, they are light as hell and with some m/t et streets 26x11.5x26, the combo weighs right at 40lbs.