Quote:
Originally Posted by GearheadSS
Those are definitely not the stock size tires for those wheels on a 6th gen. It should have 275/35/20 rear, 245/40/20 front. 315 is way too wide for a stock 9.5" wide rear wheel. Check to see if they have the GM tm and part numbers on them. They could be wider aftermarket replicas. There are a couple of companies that offer wider replicas.
fwiw, the stock ZL1 and SS 1LE rear wheel is a 20x11 and comes with a 305 tire.
|
I got out the camera and got some backside photos of the spokes and both the front and rear rims are 20" x 8-1/2" wide and part number 23434146.
I dont know why they put the cheapo (Zenna rear and Joyroad in the front) China-manufactured, monster size tires on these narrow rims, but they seem to fit and are flat across the tread with even wear all across. They are around 28-1/2" tall. When it comes time to replace them, we will be getting sizes closer to what should be on the 20" rim. Maybe 255/35x20s (27" tall) all around so they can be rotated? Or the stock size 245/40x20 which is 27-3/4" tall?