biggest tires with the 2.9, gearing

[89DANGERANGER]

what are some of the biggest tires ran with factory 2.9 motors on bronco 2's? factory gearing im guessing is 3:73. and if alot of people are re gearing with 33 or 35+ sizes what gears are most popular?

 

[The Jester Race]

I'm at 5.13 with 37"s. Engine turning every bit of 4K in 5th gear to do 70mph.

-Jester

 

[b2rich]

I run 235s with 373s. I think my rig would like it more with 410s. if i went any bigger with tires (31s) i would say that 456s would be ideal. JMO

 

[Surrey]

I run some crappy 31" ATs with stock gearing.
Im sure the truck would love lower gears, but I wouldn't waste the money on re-gearing a dana 28 front/7.5" rear.

Still had enough guts to pull my friends toyota outta the mud, and drove on the roads better than my '86 diesel VW Golf. ('course that badboy had like 46hp...)

 

[86freebie]

32's

i run 32's with stock 373, and the dane 28 up front. it has 241,000 miles on it now.
it does fine for the hills and mud i play on and in. on the street it could use more power but does fine for me.

 

[91rangerxlt]

i ran 30'' mud grips and it did just fine

 

[Hahnsb2]

I'm at 5.13 with 37"s. Engine turning every bit of 4K in 5th gear to do 70mph.

-Jester

Your tach is very wrong. Try 2700.

 

[adsm08]

Your tach is very wrong. Try 2700.

More likely his speedo is very wrong.

 

[Hahnsb2]

More likely his speedo is very wrong.

That too.

 

[baddis]

i have run 31's and 32's with 3.73 and now running 35's with 4.10 and a d28

 

[The Jester Race]

Your tach is very wrong. Try 2700.

It could be off some, but its definitely turning quite a bit faster then 3k.

More likely his speedo is very wrong.

I know my speedo is wrong but the CHP's radar gun is pretty damn accurate

-Jester

 

[Hahnsb2]

It could be off some, but its definitely turning quite a bit faster then 3k.

I know my speedo is wrong but the CHP's radar gun is pretty damn accurate

-Jester

The calculations don't lie. You'd have have 25" tires to turn 4K with 5.13s in 5th gear at 70

 

[The Jester Race]

The calculations don't lie. You'd have have 25" tires to turn 4K with 5.13s in 5th gear at 70

Tell you what, come on down and drive my truck and tell me I'm wrong.

-Jester

 

[Hahnsb2]

Tell you what, come on down and drive my truck and tell me I'm wrong.

-Jester

I don't have to drive anything to tell you you're wrong. It's simple math.

 

[4x4junkie]

5.13s and 35" tires here. Seems perfect dead-on to me, wouldn't want it geared any lower or higher (at 65MPH tach shows about 2900).