Cst 4" Lift Spindle

[centex]

I do not know the back spacing of my stock 17" rims on my gmc sierra 1500, the pic is what they look like, does anybody know?

 

This is from the site:Will not work with stock (factory wheels). A 17" diameter wheel with no more than 4.625" of back space should be used. Larger diameter wheels can normally allow for an increase in wheel back space.

 

I am wondering if I can run these spindles on my stockers before I can swing 18" aftermarket rims. WIll mb gunner 6 18x9 6-139.7 be compatible with these 4" spindles?

 

Thanks.

[cparks555]

I don't think your stock wheels will work, the offset is around +31.

[centex]

cspark:

 

will these rims work with the 4" spindle?

 

specs are: 17x9, 6x139.7, Hubbore 108.1mm, offset 18,

[centex]

Pic

[cparks555]

I think those wheels may be cutting it close still, but they may work. I would call CST, and see what they have to say about the wheels you want to put on the truck. I've seen some pics of trucks with the CST lift, and they all had wheels with a 0 or -12 offset.

[centex]

Asking was my first option, I guess calling is my next, because I do not know anything about rim offset and back spacing. lol.