Alfred Padula

Rayo, there is no front gearing available as of yet. Rear gears are available but when my 4x4 shop installed them and a Hypertech speedo calibrator for the 4:56 rear gears my truck computer would not accept this change. there is no fix as of yet....I drive my truck in Tow/Haul mode all the time which really helps out but this is not a permanent fix.

Any help would be greatly appreciated !!!

People !!! Front gear ratio change is not available for 2021 Silverado 1500 4X4. So do not change rear ratio because you cannot change the front !!!. I learned the hard way after having my rear end done to 4:56 . We have contacted many axle rear end shops and they say " NOT AVAILABLE" NOBODY KNOWS WHEN GEAR SET WILL BE AVAILABLE.. . My rear end is already geared to 4:56 so I am stuck driving truck with out front drive line while waiting for someone to manufacture front 4:56 gear ratio... My tires are 36"