34x9.5s + iron duke + stock gears?

[jesseb]

Has anyone run Skinny swampers 34x9.5s with a 4 cylinder and stock gears. I have an 81 CJ7 and need new tires anyways was thinking this could be a good way to go. A little fender trimming and some better back spacing. Only problem is I don't know if the old Iron duke will be able to start with that big of a tire. I am running 31x10.5s now and its alright(starts in second gear with out a problem) Who has done it? What kind of back spacing do I need with narrow track axles? Should I give up on these tires and find a 33 or smaller. Does anyone know a shop on the western slope that would re gear an old Jeep? I haven't found one yet. Thanks

 

[cass]

what gear ratio are the stock axles now?

 

[jesseb]

Right now it has 3.73s. They work alright but could be better. In 4low it comes alive.

 

[CJim7]

34s are really pushing it with that high of a gear ratio and a 4cyl. Power will be zero. That combo generally leads to burned up clutches from having to ride it frequently while taking off from a start.

I would definately re-gear or go with shorter tires.

 

[jesseb]

Yea that is kind of what I was thinking. I would like to regear but there is no place near by that will re gear my axles.

 

[jesseb]

What are thoughts on gearing. I am trying to decide between some axles that have 4.10s or rehearing my axles to 4.56s. Any thoughts? I know either will make a huge difference but if I got 4.10s I could probably push 33s or 34s and have it still have similar feel in power. 4.56s would probably make it feel a lot livelier and better. Any thoughts?

 

[mtnwhlr]

With a 4banger and 33s I would go with 4.56s. If you had a bigger motor you could get by with 4.10s.

 

[Torxhead]

There are some gear ratio/tire size/engine rpm charts online for you to determine what ratio you would like to have.

 

[350cj]

I`d go with the 4.56s. I went 4.10s with a Chevy V8. I wish i had the 4.56s.