ok just noticed that the 6" fab tech lift kit i ordered says "This Fabtech 6" kit will clear a 35" diameter tire when mounted on an 8" wide wheel. Please note that wheel back space should not exceed 4.5 inches. Running a taller or wider than stock tire will require aftermarket wheels with less back space than factory wheels, no more than 4.5"!"

and i didnt look at this before i ordered my 37x12.5x17 BFG all terr. tires. will i have to just run 35s or get spacers for the 37s.

 

oooo and its a 2004 ram 1500 4x4 quad cab

 

The Fabtech 6" suspension lift kit for Dodge torsion front trucks actually measures out to about 5.5" and as such, will NOT clear 37s. To my knowledge, only the Skyjacker 6" kit measures a true 6" and clears 37" tires.
You'd be much better running 35's anyway. The CV angles get a bit extreme on this kit and could cause problems with tires larger than 35". Also, since this kit does not include some of the oversized beefier replacement components like tie rods and ends like some of the higher cost kits and will result in faster wear of front end parts with 37's...

 

Yeah, you'll need to downsize to 35's or get a bodylift to add atop the fabtech.

 

x2 on the body lift, or you can sell me ur tires

 

but i can keep them 12.5 wide?

 

im sure some 1 has them 12.5" wide you just have to figure out the backspacing so it doesent rub..

 

35x12.5s will fit even with the stock wheels, although there is a good bit more clearance with an aftermarket wheel with 4-4.5" of backspacing.

Many with the '06+ coil over fronts can't run the 12.5" width on the stock wheels, but there seems to be a hair more clearance on the torsion fronts...

 

I have 305s which are about 12 inches wide and i have maybe 3/16 space from rubbing my upper control arm.

 

now if i do the body lift which would be 3" id be good with the 37. but would i still have backspaceing problems?