Jeep 4bt conversion questions

[DRU]

If you were to do a jeep cummins conversion would you change the front axle? Looking to do it to a 99 wrangler, I think its a dana 30 or 35. I get them mixed up. If this was done to a classic jeep what would you recommend?

 

[TKingsbury]

A dana 44 with the thickest axle tubes you can find.

Travis. .

 

[Steve Graham]

I'd go with a D60 front and rear!

I've got fresh D44's under my Scout and at least once a year I'm replacing u-joints or drive shafts. On my annual new years day run I broke a front axle, passenger side u-joint. That wasn't bad enough, it also ruined the inner and stub axle. This was on a mild trail which is the most I do, I only have 33 in" tires and 4" spring lift, nothing wild. If you use D44's with a automatic that might hold up better.



Steve

 

[DKarvwnaris]

I'd be more concerned about the front frame. The dana 30's have taken alot of abuse with snowplows suspended above them. Any real Jeep is built not bought, so I would probably be looking for shortened 60's and a custom 2"x3" square tubing main frame with incorporated roll cage if I was to take the time to repower with a 4bt. Until I get a frame built for my CJ, I won't put the 4bt in it that I have in my storage unit for it.

I guess with the average over 40's beer bellied Jeep freak, I shouldn't worry much about a 4bt though, its the least of the GVW concerns. :-laf