What is it?

[YJwonderboy]

Um...I have a '91 Jeep Wrangler YJ, base model with a 4 cylinder. Um...what axles have it got, most likely? I looked up a few, and I think I may have Dana 35's...but I may be just over hopeful ^.^

[aston]

d30 in the front

d35c in the rear

[YJwonderboy]

Thanks Much!! Can you get Dana 35's for the front?

[aston]

no, unless you only want to wheel in straight lines.

the d35 is a POS

the d30 is poor but with chromoly parts can be elevated to fair

[JeepGal]

The d30 up front holds up well, and is easily replaceable if you have problems, which is one of the reasons most folks still run one in front. Most folks replace the d35 rear with a d44 or better.

Welcome to the board!

Tam

[YJwonderboy]

Lol, will a 4cyl pull the D44?

[aston]

The 4 cyl can make an excellent trail rig but it requires a slightly different philosophy.

You want to build it light with tons of gearing. The D30/35 will be ok, not great, but OK. Go with 4.88 gears and put a tera-low 4:1 in the transfer case. Then remove everything that is not absolutely essential.

[Sfisher]

If you threw a D44 behind your 4 cyl it would probably be what a D60 is to other rigs. Your just not going to break it without some real hardcore wheelin'.

[YJwonderboy]

Hold on, will a 4:1 kill my everyday road speed and/or gas mileage...cause it's also an everyday driver...

[swbooking]

^ No a 4:1 is only in your TC and that should only be on when your off road in low gear. and dont worry about your 4cyl so much, its OK i know people with a 4 banger and it does just fine. and the 30 35 setup in my Xj does just fine... and ive been what i would call some pretty decent trails.

[YJwonderboy]

AH! so a 4:1 in the 4wd Low Transfer, not 2 High? Sweet. I'll seriously look into that!

[goodtimes]

Yes. The 4:1 is simply a replacement low ratio gearset in your t'case. It has no affect in 2wd or high range 4wd, as far as gear ratio's are concerned anyway.