Ok well I have a 08 sierra with the 5.3 it has headers intake edge programmer and 4:11 Yukon gears. I have 275 55 20 goodyear eagle gts in good shape and it spins like crazy from a dig. I'm planning on cam and stall but I want to solve this first....

 

are you spinning both tires or just one?

 

It's both for sure...

 

slicks or drag radials is your only cure on the street caltracs wont help shitty tires hook

 

I have Hankook RH06's and I hook in 2wd with a blown 5.3 with 367/407 to the rear and 3.73's.

 

i run 275/55/20s but i dont run from a dig on the street everything is 25-30mph an itll spin but its moving too. i run M&H DRs at the track and they are ok i just need slicks bc of the weight transfer of my truck

 

Okay well I'm just gonna look into those hankooks... the thing is I hook fine at the track... best time is only a 14.9 but no spin there with the Goodyears?

 

Do a search on here, there are a couple of threads about them, great tire (going to get another set after these), and easier on the wallet than many high performance tires.