• Welcome to the new NAXJA Forum! If your password does not work, please use "Forgot your password?" link on the log-in page. Please feel free to reach out to [email protected] if we can provide any assistance.

Lowering an XJ?

CobraMarty

NAXJA Forum User
Has anyone done this?
 
Mount rear springs under axle

Easier said than done. No axle mount on bottom, that would lower it by about 8". Need about 3-4" lowering. Don't just want to remove some leafs, want some ride quality.
 
It should only lower it about 4"/measure the bottom of axle to the spring perch.axle is what 3.5 thick plus 3/4 to a 1" adding perch.Thats what 4 to 4.5 in the rear.Perchs are easy to do, i have cut them off and re-welded them back on a couple times for folks.

From the mods you've done on your thread, i would think this would be easy for you.
 
I'll have to look again at a stock one. Maybe just weld another set of perches on the bottom and use the stock springs, flip it all over. That sounds like it might work and could be cheap enough, and just cut the front coils to level.
 
Search for lowering an XJ in this forum. There is a old thread with lots of really good info on how to go about it properly and actually see usable performance out of it.

Look up Team Petty Cash, their XJ runs with BMWs and Miatas in the corners.
 
Thanks, that is something to run with bmw's and miata's in an XJ.
 
I'm lowered about 2" all around. Addcos front and rear. Ironman4x4fab control arms and custom straight track bar(poly on all), Springworks(CA) springs(-2", tho I specified -2.5"), Daystar rear poly bushings, MORE bombproof MMs. I'll get the height of the top of the front fender and the top of the rear roof from ground tomorrow, but am on 255/60-15 tires that are 27" tall(mushy on stock 15x7" classics). Out of 70 drivers, I got 34th place with the Jeep at last weekend's auto-x. . I beat '06 M3, '10 Z4, '02 M3, '08 335i, '03 Mini S, 'o9 328i, '87 325i, '97 2.0l z3, modded '05 M3, same modded '05 M3 with diff driver, modded '98 M3, modded '06 Mini S, modded '05 Mini S, modded '08 Mini S, modded '09 Mini, modded '11 135i, modded '07 Mini S, modded 328ci, modded '97 Z3, modded '02 325i, modded '91 318is, modded 323i, modded '99 M3, modded '05 M3, '92 Miata, '01 Z28, '03 Corvette, '07 Impreza, '06 Corvette, '10 Genesis, '02 Corvette Z06, '04 R32 GTI, '12 Camaro SS, '11 Genesis, '04 RX-8, '93 240SX, '01 Type-R, '03 S2000, '03 S2000, '13 Corolla, '13 FR-S, '93 Miata, '02 S2000, '96 Miata, '84 Peugeot, '08 S2000, '08 335i, '09 328i, '13 FR-S, '10 Genesis, '03 S2000, '98 M3, and I'm probably repeating cause many of these folk ran am and pm(I ran my M3 am and Jeep pm). My Jeep kicks @$$ and does compete with BMWs and Miatas.
 
Last edited:
Are you 2wd or 4wd?
 
2WD. From centerline of wheels: 38" from ground to hood in the front and 61" from ground to roof in the rear. Yesterday I picked up some 3.73s w/ 30K from a Liberty for $20, so now will find another 8.25" to mod to SUA. The 4.10s are just too much gear for 27" tires and when I used the 24.8" Yokohama&Silverstar setup, every gear shifted one up and 1st was pointless. I won't be able to use the flat packs I have on there now, and do want stiffer springs, so I might look into the Deaver$ or a custom composite setup. The front really can't go lower without sectioning the front tube like was done by someone else here(I'd like to be 1-1.5" lower F). The rear I want 2.5-3" lower and that can't happen unless SUA.
 
Last edited:
Flip kit would be easy enough just gotta make sure your driveline doesn't smash into the transfer case in case it's too long. Your LCA's will be at an opposite angle thou so iirc for cars when they are at a negative angle they won't perform well. Ideal is flat control arms.


Do like everyone else... Don't lower it just fill it full of rim :)

Side note, my buddies 22" wheel with low profile tires off his chevy truck weighed noticeable more than my 31" mud terrain on a 15" soft 8... Total waste :-/

you could mount some mustang 18" wheels on it with forged alum(lighter is better for unsprung weight) I think they are 5x4.5 you might need spacers to clear the caliper though.
 
Back
Top