Sons truck on hoist now. He is changing the differential gears. Because he’s young, he likes to modify his truck a little. Truck came with 29.5/30” tall tires when he bought it new, in 2011. It had the stock diff gears of 3:73. So over time he ended up with 33” tall tires. This change the gearing quite a bit, which made it sluggish. Hardly pull the empty trailer let alone put any thing in the trailer. So he’s changing the differential gears to 4:56. The rear has been done. What a difference it made. Hehe. Just don’t put it in 4 wheel drive yet. Any way, he’s doing the front diff now. It’s a lot more work to do. Front diff has to come out of truck to put the gears in. Be a week or more before it’s done and out, then the Ferguson tractor can go in. be a screamer if he ever goes back to stock tire size. Hehe.
My truck is the same as his, other than it an 2005. Mine came from the factory with 31” tall tires and 4:10 diff gears. Was a package, level 2.
Noel