If I install a 3" suspension lift on my 13' JKU, do I need to get a drive shaft drop kit so it's not too high an angle and puts too much stress on the U-joints? I'm just wondering so I can save my self some headache later on. Also, does anybody have any experience with Trailmaster lifts?

 

I've never heard of a drive shaft drop kit

You are going to need adjustable control arms to find a balance between pinion angle and caster.

 

To the best of my knowledge there are drop kits for these. Also no SYE needed. What you want is a new driveshaft if anything.

 

Thanks guys. This has been really helpful.

 

Depends on what you mean.


Transfer case drop like was used on some older jeeps? Nope, haven't heard of them being used on JK's.

Drive shaft spacers? Nope, they would just move the ends of the joints in and actually increase the angles.

Exhaust spacer? On a '13, probably?

Some form of caster/pinion correction? Yes, you will want this.

'Thinner' aftermarket driveshaft? Lots of variables, it will depend on model and clearance and actual lift height and shock length and whether you flex offroad and disconnect and ....

 

Driveshaft drop kit? You must be thinking of the transfer case drop kits for pre-JK lifts. The JK doesn't need them.

Which 3" Trailmaster kit did you get? I hope it was the one with new springs AND shocks. It's the only one that actually gives you a little extra travel. The spacer kits with shock extensions actually shorten suspension travel.

You should be fine with your existing driveshaft. Just make sure it doesn't rub against the transmission skid plate or exhaust during full extension/compression.

I would hesitate to use the alignment plates until I checked the caster without them. If you do put them on, remember to disconnect only ONE lower control arm at a time. Otherwise you risk rolling the axle and damaging things. (Including body parts.)

Instructions:
http://www.trailmastersuspension.com...3.pdf&line=T/M

Good Times!

 

Yeah, it's the lift with the springs and the gas shocks. I'm just afraid that my front end will still droop down because of the winch on the front.

 

Thanks for the help!