Stretching the rear

clayton3854 · Sep 1, 2015

so after swapping to waggy 44s and buying 37s and i need some extra room in the front wheel well so im looking to stretch the rear 2-3" already have shock hoops and shackle relocation brackets so adjusting those aspects of the stretch will be no issue, i know i might need a new driveshaft no issue there, question is what leafs should i use? and whats the easiest way to get this done? on a month time frame for a trip. Thanks!!

clayton3854 · Sep 1, 2015

im thinking of just flipping my leafs to give me 2" but i have military wrap leafs, anyone know if this will cause an issue? iv heard itll only speed up my bushing being worn out which i can live with

DeftwillP · Sep 2, 2015

Big time spring wrap. Are you going to build a traction bar?

ehall · Sep 2, 2015

The best way to do it is get a new main leaf with the lengths you want, then rebuild your pack around it. You want the heavy parts forward because the front of the pack acts like a control arm and takes all the stopping load, while the rear part just pushes the shackle around.

Starting point here http://littlekeylime.com/MrN/mrnimages/leaf_springs.png also check similar threads at the bottom of this page

clayton3854 · Sep 2, 2015

ehall said:
The best way to do it is get a new main leaf with the lengths you want, then rebuild your pack around it. You want the heavy parts forward because the front of the pack acts like a control arm and takes all the stopping load, while the rear part just pushes the shackle around.

Starting point here http://littlekeylime.com/MrN/mrnimages/leaf_springs.png also check similar threads at the bottom of this page

So basically easiest most simple way is buying leafs at my desired length ideally ranger leafs to give me 2-3" then just build the leafs into a bastard pack using lift leafs and bolt in more or less? I know I could run into driveshaft issues but I'll deal with that then, just wanna make sure I'm not missing anything.

ehall · Sep 2, 2015

For ~3" of length, yes, that is what I gathered from researching the subject.

blondejoncherokee · Sep 2, 2015

I am planning on adding some MJ leaves to my rig . Stretching the rear 2" over the current 1" stretch (currently using the front hole on RS perches, plan to shift to center hole) to help get the 40s out of the wheel well. From my measurements the last hole on the shackle boxes should work with some 5"-6" boomerangs.

clayton3854 · Sep 3, 2015

ehall said:
For ~3" of length, yes, that is what I gathered from researching the subject.

awesome thanks for the info!!

blondejoncherokee said:
I am planning on adding some MJ leaves to my rig . Stretching the rear 2" over the current 1" stretch (currently using the front hole on RS perches, plan to shift to center hole) to help get the 40s out of the wheel well. From my measurements the last hole on the shackle boxes should work with some 5"-6" boomerangs.

im gonna contact my buddy with an mj determine how much longer mj leafs are vs xj and see if thats my best bet! thanks!

ehall · Sep 3, 2015

If you check the link in post #4 (you even quoted it), you can see the difference. Also the Explorer leaf is a little shorter

clayton3854 · Sep 3, 2015

thanks ill print that out and check it out!

BENZOMATIC · Sep 22, 2015

I personally think this is the easiest way to get 2-3" of stretch but I'm not afraid to bust out the plasma & MIG. You can dial in your rear pinion angle while installing these beauties as well.

Ruff Stuff +2 perches

http://www.ruffstuffspecialties.com/catalog/2PLUS.html

zachandandy · Sep 22, 2015

The front mounts are less than desirable anyway, shake relocaters take care of the rear, why not just build a new, much stronger, front mount at the length desired? No more captured nut that wants to spin inside the.unibody as a bonus.

blondejoncherokee · Sep 22, 2015

like I said in my earlier post, MJ leaves will stretch you 3", I am already stretched 1" in the rear, so I will only net 2" more if I use the center hole, negating the 1" stretch, which will still be 3" over stock though.

you will more than likely be on the last hole on the shackle relocators and need at least a 5.5"-6" long shackle to boot

rockclimber · Sep 23, 2015

zachandandy said:
The front mounts are less than desirable anyway, shake relocaters take care of the rear, why not just build a new, much stronger, front mount at the length desired? No more captured nut that wants to spin inside the.unibody as a bonus.

this would be my vote.

I went the custom leaf route, and at the end of the day, dealing with figuring out rates and adjusting things It would have been easier to just move the front mount some.

Starboard M · Sep 23, 2015

At 3'' of stretch, depending on axle and amount of uptravel you might hit the gas tank if it has not already been relocated.

cal · Sep 23, 2015

We did this using Deaver F150 leafs.

Pushed the axle back 2", used the factory front leaf perch and built new rear ones.

rockclimber · Sep 24, 2015

Starboard M said:
At 3'' of stretch, depending on axle and amount of uptravel you might hit the gas tank if it has not already been relocated.

I have an 8.8 and 4" of stretch with leafs.

my dif cover rubs on my gas tank skid. and my axle stuffs pretty close to stock bump.

it will self clearance eventually. 3" will be OK.

DeftwillP · Sep 24, 2015

Didn't I read something on here recently about dropping the newer model plastic tank and using a heat gun to form a raised spot in it?

Stretching the rear

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