Double shackles and Rear raised shock mounts, how to?

[cj5grandnationalturbo]

I have a 56 CJ5 that i want to raise the rear shock mounts on. Has any one done this? and how did you do it? Second i want to make some double shackles to get some more travel and was wondering if any one had done it and if so how?

 

[CJim7]

"Double shackles"? explain

 

[54cj3b]

Are you talking about something like this?



I advise against it
if you do this its going to be really scary going down hill with all that forward shifting going on it will reduce your braking ability and not very stable , in all reality its not very safe IMHO

I have seen it done but those guys are a few cards short of a full deck

you probably be better off with 1 set of revolving shackles , but I really don't like them much myself , but that's me some swear by them and others just out right hate them

 

[CJim7]

A leaf spring suspension needs one attached point, that's why there is only one set of shackles. If you have shackles at both ends of the springpack, you will have to have a link suspension (upper and lower control arms) to keep the axle from moving all over the place. You might as well just do a coil conversion on it at that point.

A 3/4 eliptical suspension utilizes a short, fixed spring attached to the frame with an eye that attaches to the main packs. This shorter spring allows for some axle droop as it drops some during decompression of the suspension. It still uses a fixed system which will keep the axle centered where it's supposed to be. This is also called "buggy springs"

a 1/4 eliptical uses one half of a spring pack attached to the front fixed eye, and back to the axle. It offers superior articulation but the price paid is in a short spring life. Also very unpredictable. Jerry Duffy (winner of TTC '05) had this very settup on his scrambler and ran it for a few years like that before he got tired of replacing spring packs and did a coil-over.

As far as shackles on both ends of the spring pack...that's a No

 

[73CJ]

A leaf spring suspension needs one attached point, that's why there is only one set of shackles.

As far as shackles on both ends of the spring pack...that's a No

No way for doubles. One side could go forward and the other back - opps , rear steer. Real bad idea. And there are many other reasons why not to do that.

Not to mention the travel needed on the driveshaft splines.

 

[cj5grandnationalturbo]

ok guys I'm not stupid enough to put a shackle on both sides of the leaf. I'm talking about putting two shackles at one end of the leaf. A small one that rest on the frame then the normal one that attaches to the leaf.

 

[cj5grandnationalturbo]

Also how to raise the rear shock mounts? any ideas?

 

[BusaDave9]

Double shackles
Instead of making your own get some. Revolver shackles, such as what Tera-Flex makes. Is this what you are thinking of?

They sound great. They allow a lot of flex. Actually too much flex. I have heard you are more likely to break a leaf spring.
Or something like this:

Are any of these close to what you are thinking of?
All these options allow the axle to droop much more than stock. They also allow more flex. They are meant to be installed on the rear. One disadvantage is they unload going downhill. The rear raises and it feels like you going to flip over your nose.

 

[BusaDave9]

Rear raised shock mounts.
That can allow more wheel travel. Unfortunately there isn't much room to raise the shock mounts. In stock form they mount just under the body. In order to raise them they have to be moved to the outside of the frame. Like this:

This works out nice if you are installing wider axles.

 

[BusaDave9]

This may be closer to the double shackles you were asking about.

Once again the same problem with them unloading going downhill.
This guy thought of putting a pin to prevent this unloading. Sounds like a pain to put in the pin and remove it all the time.

I have seen similar setups with a portion of a leaf spring against the body.