I have a new set left over. Do you think they will be too low for my truck? Hand held tuner,cai, and borla catback. Has 3.42's now. Btw, even though the dealer says it has an 8.625 rear end but I was told it still is the same old 8.5 gear set. Is this correct??? Comments,suggestions???

 

with 4.10 gear you will be about 2,400 rpm's at 70 mph just so u know

 

Do it and never look back.

 

I am correct that the regular 8.5" ring and pinion set like in all the earlier trucks will fit my nnbs 07???????

 

Yes its the exact same. The Only difference is the bearings used..if I'm correct. Someone will chim in that knows more
Do you have 20s or the 17s? If you are running 20s you should see about 2200 @ 70mph roughly
If you stay N/A then go with lower gears, if you go FI I'd stay 3:73-3:90s unless you stay with a tall tire

 

Hey thanks for the info. What is the gain on these trucks goin from 3.42's to 4.10's??? Should be night and day.

 

yes very noticeable !

 

I put 4:56 gears in my truck and absolutely love them. I have the 275/55/20's and I'm turning 2400 rpm at 70 mph. If you are going to use the same posi unit in your truck that you have in there now you won't need bearings just a new pinion seal and crush sleeve and you are good to go.

 

Hey thanks for the info. I do have the 20's but have 30" tall yokohamas can't remember either 275/45's or 275/50's. Sorry had a brain cramp.LOL

 

You'll love the 4.10's. I'm running mine with 275/45/20's.

Lisa