It's what's in!

Fitting 40s

Posted June 11 2008 02:54 PM by Jp Editor
Filed under: Editorials, Jeep Enthusiast Culture, John Cappa

Ok, so 40's are not really on everyone's wish list. But ever since more road-worthy versions of the 40-incher have surfaced who can blame us for trying to fit them on everything.

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I just got done slapping the Hell Creek 4-inch lift springs onto the the front of my '73 J-truck. I bolted on one of my Juggy Goodyear MT/R 40-inch tires just to see how it would fit. Well, I think it would if I cut the factory flares off. But for now, I'm kinda leaning toward some 37s...or maybe some 39-inch Boggers! Well, back to work. I gotta flip the rear shackles, and it looks like the exhaust is in the way. Wish me luck.

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Reader Comments:

1. save the flares put a bigger lift on instead

psychosquirrel - Posted June 11 2008 06:37 PM

2. No way! I'm cutting!

Jp Editor - Posted June 11 2008 07:43 PM

3. Do the "Conehead" cut like you did on the Panel. That was sweet.

By the way, nice rocker dent. Is it a requirement that all your FSJs have that?

Jp Tech Editor - Posted June 11 2008 08:02 PM

4. i think a little trimming with the sawzall and those 40's will fit nice

chariotofmanliness - Posted June 16 2008 04:49 AM

5. YEAH, hack those things off! thats what I did to my cherokee and Im able to stuff 35" under w/no lift as of yet, but I do plan on lifting...would you be able to takes aome pics of the rr shackle flip sos I can see how its done? PLEASEEEEEE!

keithpapa - Posted June 16 2008 01:58 PM

6. Super easy to flip the shackles on a post-mount rear suspension FSJ in most cases. Remove the shocks and jack up the Jeep by the frame. This is usually perfect to unload the rear suspension enough to use a pry bar to pull the shackles down to the under position. You don't even have to pull them off to flip them. Super easy. Second time this has worked for me. Of course if your Jeep has rubber bushings you should at least loosen the shackle bolts. Mine has bronze bushings so I didn't bother. Then all that's left is to install longer shocks and check the pinion angle. It's good for about 3 inches of lift or so. The simple flip only works on early post-mount FSJs. Others ('74 and older) will require some fabrication.

Jp Editor - Posted June 16 2008 04:55 PM

7. cool....Ill try taht this week end when I put the assend back together.
Oh and do you jack the ass up by the rr crossmember? and would a HiLift work?

keithpapa - Posted June 17 2008 10:51 AM

8. looked at my ass yesterday and I dont have the same set up so a leaf sprung lift or flip is what Ill have to do...later!

keithpapa - Posted June 20 2008 02:54 PM

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