Shacle Reversal

[Dmntxn77]

When flexing now, your pinion gets pointed towards your transfercase. When flexing with a shackle reversal, your pinion gets pointed towards the ground.

You will need to make sure that your drivelines can handle the extra angle.

You can rotate the leaf perches around the axle a little bit, but that is a lot of work for anyone who is already spring over. Plus, I wouldnt reccomend cheating it more than 2 degrees anyway otherwise it will wander like a yaht at higher speeds.

[Dmntxn77]

I guess I type too slow... Stuka beat me to it...

[Dmntxn77]

Anther point to cover is axle movement withing the wheelwell. Stock, the tire sits closer to the firewall than it does the bumper since it will move forward during flex. Once you switch the shackle, your axle will move the opposite direction. So, you will probably need to reposition your axle closer to the bumper so that when you flex, it does not get forced into the firewall.

[4x4fEvEr]

Good points! I have a 1410 yoke for the front but no driveshaft yoke I gotta find one, and I could turn mine up 2 degrees no problem plus I'm already highpinion so I think ill be safe. I've got the front axle pushed forward two inches as is it was eating into my turn signals which are gone now so I should be fine if not I can always make room. I'm def going to do the shackle reversal

[Dmntxn77]

Cool, go for it...


If I were you though, I would measure your pinion angle at full flex just be be sure. Remember, the HP D60 pinion location is only 2.25"s higher than the LP D60, so its not THAT big of a difference. It still doesnt point your pinion up.

[fulsizjeep]

pictures for those who were curious



more pictures underneath here:

http://jubileejeeps.org/tech/soaluna/index.htm

[JeepsAndGuns]

From the looks of it. It looks like they simply took the stock shackle off the front, bolted the spring to the stock hanger, and then stuck the shackle on the rear hanger.

[Dmntxn77]

Flint, do you have any side profile pics that show your at rest pinon angle?

[fulsizjeep]

Flint, do you have any side profile pics that show your at rest pinon angle?

not yet, but can get a couple this weekend

[j20brett]

Thanks for the pics flint!

[AlsChopShop]

so they just put the shackle on the other end. they must have adjusted the SOA perches for the severe increase in caster..... or.... maybe that's why its so scary to drive.

Al

[JeepsAndGuns]

so they just put the shackle on the other end. they must have adjusted the SOA perches for the severe increase in caster..... or.... maybe that's why its so scary to drive.

Al

Ya know, I was thinking the same thing. Weather or not they did this before or after the SOA, and weather or not they did anything to correct it. If this is in fact the way they did it. Because like you said, that could be why it is so squirly to drive.

[guishe]

I dont know much about this little things. I just like to read.
And also like to draw, so I guess that if you want to reverse the shackle and keep the original caster and angle of the springs, you should add something like the red piece in the picture.
Axle will go about 1.5" forward, and you will add about 2" high at the same time.

[Dmntxn77]

Nice work... BUT, you would want that shackle facing 30 or so degree back, not forward...

[guishe]

AS I said... I dont know a lot ... but i'm in the same process you are... and I found a lot of articles in which the set up the shackle angle to the front... here is a couple... (in the second, look at the movement in the spring). They are not talking about fsj, but I think it should be the same.
In case you are right, changing the angle wont change the high, just the "forward movement" (it would be "backward") And excuse the posible grammatical mistakes my english is kinda primitive

http://www.4wheeloffroad.com/techarticles/drivetrain/131_0902_jeep_leaf_springs_shackle_reversal/photo_06.html

http://jeep.off-road.com:80/jeep/dat...281/rarch2.jpg