FJ40 Squat

[Clyde-2]

Am sure this has been discussed many times.........my 75 fj40 squats in the rear
end like a dog dragging his butt on the carpet. Has the original shackles and bushings.
Is this a shackle problem only or are the shocks part of the equation too? Shocks are
old and need to be replaced.

 

[rockcod]

Shocks don't hold up your vehicle, unless they are air shocks, so that should not be the problem.
Sounds like old, weak springs to me. Longer shackles in the rear would lift it a little. I would change the bushings, too, since you are in there.

 

[IDave]

Yup, springs, mostly.

 

[camcruiser13]

mine sagged too, so for the time being i put longer shackles on, until spring time and then ill go with a new lift kit

 

[wsdavies]

What about having the springs re-arched and adding a leaf...Would that work?

 

[IDave]

Add a leaf: yes. Re-arching: usually a temporary improvement at best.

 

[theo]

What about having the springs re-arched and adding a leaf...Would that work?

Yes and no. You get your FJ assend back to level but your personal assend gets hammered to smithereens because your truck now rides like a buckboard. Then you get to replace the springs, like you should have done in the first place.

 

[hammerhead]

...take off that heavy hardtop...

 

[bad_religion_au]

mine sags heaps in the back... looks mean, like it's about to launch...helps with driving up stuff too, cause your chassis is on an angle, the front is actually pointing higher than if the rear was at the proper level.. (yeah i just can't be assed fixing it) new springs is the proper way to do it. longer shackles will gain height, but play with pinion angles, and re-arching generally doesn't last.

the question will be, will sagged 55 series springs make mine higher?

 

[70LCruiser]

I put the skyjacker 4" lift in my truck this summer, and everything was level. When I put the hardtop on it sagged pretty bad. I bought SOR 2" heavy duty shackles. They lifted it up the perfect amount. They arent those flimsy 2 peice ones either, they are 3/16 plate ( i think, or 1/4") that is held together by box tubing. they are cheaper than going with new springs, only like $20. The pinion angle got better in my truck because it was lifted also.

 

[IDave]

Putting a heavy winch on front and taking off the hard top will level it some.

I used some of SOR's helper springs to bring up my tail. (And visually straighten the lean!)

 

[dylan]

i agree with bad religion, i like the looks of the rearend squat on my 40. looks mean!

 

[bad_religion_au]

hijack here, dylan.

so you got 35's on with 2.5 inches of lift???? cool, i was planning on going up 2 inches when i can get some decent front springs...

also how do you stop your 35's chomping out your tie rods (mine do with 33's, and how do you stop the 35's rubbing the inside of the rear fender... and how does it go with a 2f, 35's and 3.70 gears? 4th gear must be for land speed record attempts

got pics?

 

[FLYINGLOW]

hijack here, dylan.

so you got 35's on with 2.5 inches of lift???? cool, i was planning on going up 2 inches when i can get some decent front springs...
also how do you stop your 35's chomping out your tie rods (mine do with 33's, and how do you stop the 35's rubbing the inside of the rear fender... and how does it go with a 2f, 35's and 3.70 gears? 4th gear must be for land speed record attempts
got pics?

If your 33s are 12.5 wide, then 35s won't be much different for width. I got 36s with ironmans (2 1/2 inches I think) in the front and 45 rears. They rub the front springs, just touch the front fenders and rub lots in the rear wheelwells on the inner sidewall. I just live with it.

 

[dylan]

my procomp springs are stiff as a board and my 3.5" wider aluminum fenders allow my 35 12.50's on 15x10 rims with 3.25" back spacing to fit. i cut the rear wells as much as a could but they still rub a bit in the back.

 

[dylan]

oh, and its a gutless piece of s***. i think i got it up to 70mph on the speedo once but it was to scary

 

[bad_religion_au]

dylan, have you considered getting a set of 4.11 diffs? might give you some more pull. the rear rubbing, i deal with, the fender has been trimmed flat with the floor (these rears are not flat, their slightly bent the wrong way) the rear rubbing i deal with, only a problem through corners.

my tie rod, the one that comes off the steering shaft off the pitman arm, gets rubbed off at full lock, do you guys just not turn at full lock