many questions

[buddy208]

what is the difference between normal 8.25 axle and 8.25 hd axle. ( and yes i know what hd means)?

what a gas nozzle (where the gas cap screws on to) from acherokee work on a 89 mj?

does 4 inch lift need different length arms?

how much lift does the stock leaf springs give if you go under with the axle?

[87Warrior]

does 4 inch lift need different length arms?

The 4" does not NEED new LCA's... but, having new CA's that are adjustable helps you dial in the suspention. All quality control arms will allow the axle to droop more with new joints. I would highly recommend a set of quality control arms... all 4 of them.

 

how much lift does the stock leaf springs give if you go under with the axle?

Depends on your axle and leaf spring set up. About 5" is average for the MJ.

[Eagle]

what is the difference between normal 8.25 axle and 8.25 hd axle. ( and yes i know what hd means)?

I have never heard of an 8.25 hd axle.

 

what a gas nozzle (where the gas cap screws on to) from acherokee work on a 89 mj?

No.

 

does 4 inch lift need different length arms?

See response above. :agree:

 

how much lift does the stock leaf springs give if you go under with the axle?

Between 5 and 5-1/2 inches.

[Pete M]

Keep in mind that the 5.5" number is the lift above your current height. If your leafs are sagging badly or are from a 2wd MJ, you may need as little as 4.5" of lift up front to match. If they are 4wd leafs in good shape, you may need as much as 6.5" up front to match.