2015 F-150 for Florida Forest Trails, BDS 6" Lift, Nitto Ridge Grapplers, 4.88's
#61
Again, thank you very much for tor info and taking time reply my question. I had a super-crew RWD 3.7L (non-ecoboost) with 17” stock wheels. I had 6” lifted run on 3x12.5x20. I know my engine is pretty small for the lift. The shop that worked on my truck install the some kind of software because I had bigger wheels and tires, I didn’t have it regear. After a year driving with the lift. I feel the transmission sometime slip at 2nd and 4th gear. I put back on 18”’wheel then it’s fine. I recently sold it and purchased a 2018 supercrew V8. I want to have 6” lifted on 35x12.5x20 again. Not sure do I have to regear cuz I don’t wa t to hurt my new truck. Thank you in advance
#62
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Again, thank you very much for tor info and taking time reply my question. I had a super-crew RWD 3.7L (non-ecoboost) with 17” stock wheels. I had 6” lifted run on 3x12.5x20. I know my engine is pretty small for the lift. The shop that worked on my truck install the some kind of software because I had bigger wheels and tires, I didn’t have it regear. After a year driving with the lift. I feel the transmission sometime slip at 2nd and 4th gear. I put back on 18”’wheel then it’s fine. I recently sold it and purchased a 2018 supercrew V8. I want to have 6” lifted on 35x12.5x20 again. Not sure do I have to regear cuz I don’t wa t to hurt my new truck. Thank you in advance
With 35" tires, I don't think it's necessary to re-gear. I would say the vast majority of people don't regear with 35's. You should ask the shop that does the lift as well, but I think they'll say the same thing. You will need the software again which corrects the speedometer and shift points because the bigger tires affect the speedometer.
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