which gears would give me the best 1/4 mile times?? the truck has 3.42's now and i have 285/50R20 tires so these gears have got to go. i was thinking 4.10 (i don't want to go lower than that) also I am puting on a supercharger later this month so should i go with higher gears than the 4.10's? like 3.90's maybe? thanks for the input.

 

4.10s, have them, and my truck isnt bad at all.

 

go 4:10 I have the same truck you do and I have 3.73 and I wish I had more.

 

Another vote for 4.10's. This is what I would get if I were to have 3.42.

 

try 3.90s

 

4.10s would be fine as long as your tires are over 28" tall and you are not expecting to stay in 2nd gera through the 1/4mile.

A blower will cause the engine to rev up much faster so you can't run as tall a gear as you would N/A in some applications due to reving too high through the traps.

 

Carbon 04 what wheels are those. They look awesome. Sweet looking truck too.

 

My last couple of trucks have had 4.10's (and 31-32" tires). I never want another gas truck with gearing any taller.

Even now, I wouldn't mind going a bit deeper. I'd probably be more serious about it, if I didn't have a front end to also convert. (then again, I'd be getting no traction if I didn't have it with these gears)

 

4.10s
Doesn't effect mileage like everyone thinks....or at least it didn't change mine, and I drive half freeway, half city.

 

quicksilverado, Thanks, I bought them at a muscle car show over here, they are Torq thrust ST's but im not sure who makes them ,maybe american racing?
I've had 4:10 with these wheels on my last truck and i didn't mind them at all i found them too have the same gas mileage, with the supercharger though i was thinking that maybe a taller gear would help with will spin. I've heard its better to go with a little taler gear with a supercharger, is this true? thanks for all the help.