[EricR]

Can someone help me out?

I have an 03 5sp 2.7L 4x4 with 3.91 factory gears - mated to tiny factory 28" tires.

In the next 2 weeks i'm going to upsize my tires, and regear the truck.

I have a Cornfed 3" lift.

I Guess my 2 options are 33x10.5 or 33x12.5 - I already have 15x8 black steelies with 3 3/4 backspacing. I'd like to go with a procomp tire, they currently have the buy 3 get one free - and I can get free shipping as well.

Should I go with 4.88's? I am going to add a lockright in the rear at the same time. I don't wheel very often, at most just a few weekends a year.

Thanks again for the help, this in going to be an expensive upgrade session, and really want it all to work well together.

Or would it really be better to just do a 32x11.5 and 4.56's?

 

[dragr1]

Can someone help me out?

I have an 03 5sp 2.7L 4x4 with 3.91 factory gears - mated to tiny factory 28" tires.

In the next 2 weeks i'm going to upsize my tires, and regear the truck.

I have a Cornfed 3" lift.

I Guess my 2 options are 33x10.5 or 33x12.5 - I already have 15x8 black steelies with 3 3/4 backspacing. I'd like to go with a procomp tire, they currently have the buy 3 get one free - and I can get free shipping as well.

Should I go with 4.88's? I am going to add a lockright in the rear at the same time. I don't wheel very often, at most just a few weekends a year.

Thanks again for the help, this in going to be an expensive upgrade session, and really want it all to work well together.

Or would it really be better to just do a 32x11.5 and 4.56's?

33's and 4.88's. If you go with 32's, you will eventually want the 33's-everyone that goes with 32's says they wished they had gone with 33's. With a 3" lift you'll want the 10.50's unless you are adding a bodylift also.

 

[EricR]

Thanks for the info, I guess I'll add a couple hundred more bucks and get a RB body lift at the same time. That way I can just go ahead and get the 33x12.5's I want.

-Eric

 

[The Shocker]

Hey man, I see a lot of people pondering about what ratio to get. I say 4.88's. It's not like you won't be able to drive on the interstate with them.

And what if 4.88's does turn out to be a little high? So what, at least you can rationalize it by saying "hey, I get plenty of power with a little 4 banger".

 

[dragr1]

Hey man, I see a lot of people pondering about what ratio to get. I say 4.88's. It's not like it's going to take your not going to drive on the interstate at all.

And what if 4.88's does turn out to be a little high? So what, at least you can rationalize it by saying "hey, I get plenty of power with a little 4 banger".

I'm running 4.88's with 33's on my '99 4Runner with the V6 and 5spd. I think the few extra rpm's are needed b/c of all the extra weight and drag added by the offroad parts.

 

[The Shocker]

good point

 

[EricR]

4.88's it is! I could use the extra umph when towing back up the mountain with the jetski's

Thanks for all the input!

 

[TacoCrazy]

I'm running 4.88's with 33's on my '99 4Runner with the V6 and 5spd. I think the few extra rpm's are needed b/c of all the extra weight and drag added by the offroad parts.

How are the 4.88's working out now that you've had them a little longer?? I'm still on the fence...But as you mentioned, the extra weight makes a difference..The only real concern I have about the 4.88's are the highway rpms..I've done all the gear calculations and for the most part I'd be about 3100 at 70mph..

 

[dragr1]

How are the 4.88's working out now that you've had them a little longer?? I'm still on the fence...But as you mentioned, the extra weight makes a difference..The only real concern I have about the 4.88's are the highway rpms..I've done all the gear calculations and for the most part I'd be about 3100 at 70mph..

Well I don't drive the 4Runner much and have only put 90 miles on it since the install. But I calculate that I should be at 3400 rpm's in the 75 to 80 mph range. According to my calculations, when I was stock with 3.90's and 28.4" tires it would have turned 3150 at 75 to 80 mph. So another 250 rpm doesn't bother me. So far it is much easier and nicer to drive though, even my wife commented on how much more she likes it now (she drives it a good bit).