Looking to go from factory 3.42s to 4.10s in my 05 4x4 1500 5.3. I have 35” tires and daily commute 50 miles highway but would like it to have some torque for occasional mudding/off roading as right now it’ll barely spin the tires. My question is do I need to get a tune for the shift points, abs, speedo or anything else or will everything be okay if left a line for a little while? If needed where/who would I get in contact with? Thanks!
Regear Tuning
- Thread starter Katurnbow
- Start date
If not doing the tune yourself, any local tuner should be able to do this for you. Or you may need to send in your PCM for a mail order tune. Only one I know is PCM of NC.