Hey im new to this forum ive owned another jk in the past that had a 3 inch lift and 35s my question is this. I have a 09 2 door x 6 speed. I plan on pulling the trigger on the lift and some other goodies. So far ive decided i want around 3 inches of lift but would love to run 37s as ive had 35s on my previous jk. After some searching it looks that 37s can be fit with flat fenders and a 3 inch lift with that being said im looking at possibly the 3 inch tf kit with bushwacker flat fenders and since i have the x i wanna upgrade the front axle with alloy usa front 27 spline chromoly shaft that should be able to handle the 37 a little better than the stock d30 as well as 5.13s and nitto mud grapplers 37x12.50 on 18 inch kmc rockstars i assume going the 3 inch flat fender route should negate having to do driveshafts right away i would assume? Am i missing anything else on the build that i should look into other than adjustable arms but i thought i could wait on those since i wont be doing the driveshafts yet? Any help would be great thanks in advance .

jimmy

 

Welcome to the forum!

No one can tell you for certainty on your drive shaft issue.

Normally a lift at 3" is where drive shafts tend to fail and spit grease.

Your front drive shaft should be OK for a while but the rear will fail after to much stress has been applied for to long.

How long will it last? Not a clue. Drive it till they break and hopefully you won't be one of the horror stories floating around.

Full Traction is one of the many sponsors that are active on the forum. He runs a 3" Long arm kit on 37's. His name is Chris AKA Fulltraction on the forum.

 

I know I read a thread talking about 37s today and minimal lift. Do a search for that because I read some great info on 37s in there and your running a two door which to my understanding can make things a little tight but I think ur fine with the driveshafts right away. you also need to extend some stuff I think like break lines and such and I read something about ball bearings idk do a search this is all me racking my brain for what I read today.

Welcome to the forum though!

 

i hear ya on the driveshaft thing. I was just trying to save a little coin and do it later i guess it will depend on my wheeling may have to take it easy til i replace the ds. As far as clearance though from what ive read the tf should net enough height to clear the tires with the flares hopefully

 

with a 3" suspension you'll be clearing 37's. but you will have to pinch your seams.

you may need to run flat fenders, depending on the mfg on the coils, bump stops & extended brake lines are a min.

 

thats what i was thinking as well i forgot to add the brake lines in my list earlier but i hate that freaking pinch seam i dont think my tj had that crap lol. Oh well it is what it is. I appreciate all the help thanks again ill keep you updated and post pics when everything is said and done.

 

Have you found the FAQ's yet? I would suggest starting there.

Those 3" TF coils have a long history of giving close to 5" of lift on 2doors. They have released a newer version of their coils for 2doors, so I would suggest that you touch base with someone and actually verify that you aren't going to end up at 5 inches.

Even if the new 2door coils only give 4" instead of 5, you have a 2door, and should expect to be replacing driveshafts. And yes, you will need a set of adj ca's for each shaft. And speaking of ca's, have you read the bit about Caster in the Faq's? You should. With 3+ inches, it is something you are likely to want now. And then there is axle positioning. Taller lifts bring the axles in. Front axle moves toward the rear, rear axle moves forward --> which takes those nice new 37's right into the pinch seam. So plan on trimming at the very least. And depending on the actual lift height, you may need 'both' sets of rear arms to move that axle back.

When you re-gear and add the alloys, you should also spend the money to have gussets (and sleeves?) welded in. If nothing else, you can call it cheap insurance.

In addition to the ca's, plan on adj trackbars or brackets to center the axles. And extended brake lines. And bumpstops. And links. And steering correction if you end up over 4". And...

 

What he said.

Also, you should be able get away with running the TF 2.5" with flat fenders. That should delay your need for a new rear DS. As long as you trim the pinch seam and/or get rear adj LCA's(to move the rear axle back), you shouldn't rub. Worst comes to worst, you can always throw on a 1" BL, allowing more room in the wheel well, while also not raising your center of gravity much compared to a taller(suspension) lift.

Also, please correct me if I'm wrong, but as far as I know the 37" Mud Grapplers only come in a 13.50" wide size. So be sure to get your wheels with 4.5" BS or less.

 

With 2 door i would also reccomend a 2.5" coil lift. Add a RC 1.25" body lift with the shifter relocation bracket since you have a 6 speed. Otherwise youll have to trim your boot with a BL. The RC kit is very nice and makes a BL on a 6 speed stress free as long as you get the shifter adapter.

 

3" is perfect on a 2 door, You just need brake line extention brackets which comes with most lifts. The driveshafts will be fine as long as you stay at 27" long shock.

I'm running our 4" bump stops and flat fenders. This is the perfect combo to keep the tires from rubbing the fenders.