I was looking to beef up my shackles from the stock crap that my YJ has. I have a question ........
Would going with a shackle that was 1" or 2" inches taller cause any problems?
I have new springs on this Jeep so the springs have a lot of life left in them.
Heh, I beefed up my shackles from the stock crap a CJ has to a YJ set.... LOL, seriously!
Yes, a taller shackle will cause issues.
It messes with the driveshaft u-joint angles and the camber in the front so the steering wheel won't return to center without help when cornering and will cause you to eat driveshaft u-joints up fast.
If you can figure it out, or if the company that sells the longer shackles has any smarts, you can get wedges to put on the spring pads to get the tilt on the differential back where it should be.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT'sJeepster wrote:
I agree with Mike. I have RE Heavy Duty Spring Over Springs with the stock shackles. They have withstood the toughest trails the East has to offer. Stick with the stockers.
Daren
I am a firm believer that you want to keep your shackles as close as possible to stock length. Now for the caveats.
The problems caused by too much Length can overcome with beefier parts. My shackles are the ConFer heavy duty shackles. They are longer than stock, but more than make up for the length by being much stronger. They are about 1 inch longer overall than stock, but the material is much heavier. Having said that, you can buy them stronger, but way too long for the strength to accomodate, and then you are going to have problems again. I would think that if you stayed at an inch or two overall longer than stock, and went with a product like the ConFer, you would be OK.
Tell me one more time why longer shackles affects the springs?=20 Wher is this "leverage" coming from???? The springs on the pix=20 look just like the ones on my Jeep with stock shackles.
My beef with the l> That little two inches is enough leverage to take the arc right ou= t
The mean reason that's so ingrained into me is as to just how fast we ruined the rear springs of the '57 and '58 in back ground by flipping their shackles:
The pivot point is the shackle.
The arch is designed for so much travel at the pivot point.
Change the length of travel at the pivot and the springs can straighten out too much which destroys the arch pretty fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT'sRoy J wrote:
One of these words don't belong... let's see... ahhh, I know you meant caster.
-Brian
Yup, you are correct...
Mike
If you are accomplishing all of that lift with those shackles, they are too long. Those are much longer than mine, and they are going to cause you problems.
That's a YJ, the springs are flat from the factory.
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