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Gdkerplunk03 06-24-2009 06:40 AM

Suspension advice
i just bought a rubicon express 2.5" lift kit and was wondering, should i buy shackles to put on it also? if so what should i buy? i dont really know alot about shackles as far as sizes and what types i should go with. also is there anything else i should do while i have it ripped apart for the lift kit?

dooder 06-24-2009 07:26 AM

for the sake of being there ide buy a set of greasable heavy duty ones. which ones? i dont know since they come in all styles and mine are still stock but i know when i do lift im putting new stuff all over the place.

minderbinder3 06-24-2009 07:48 AM

I put the boomerang type shackles on in place of the old "saber tooth" looking ones when I recently put my lift on. I think they look a lot better than the straight ones. I heard to stay away from the greasable ones because it makes for a weaker bolt. I would recommend the shackles though, it is an easy mod and inexpensive mod...since you will be there anyway. Here is an example of some New Jeep Wrangler YJ 87-95 1" Heavy Duty Shackle Pair:eBay Motors (item 120436869187 end time Jul-18-09 14:01:02 PDT)

Gdkerplunk03 06-24-2009 07:58 AM

with the 2.5 inches of lift from the kit, if i go for the 1 inch shackle lift is there anything im going to have to mod to make it work, or will it be fine without any other changes?

minderbinder3 06-24-2009 11:22 AM

I recently added a 2" suspension lift and the new shackles. I already had the 1" body lift and straight shackles. I put 4 degree shims on the rear axle and played with the t-case lowering kit. Mine drives better with the t-case lowered, but I would try it without it and see first. Everything else should be fine. Oh yea check your brake lines when put on the new springs. Sometimes you have to take them out of the little brackets that hold them in place by your wheels. Some kits come with new brackets to move it down some. Just make sure you have some slack in the lines. I didn't have to do anything to mine.

BestopTeam@Bestop 06-24-2009 11:37 AM

Bigger shackles can impact your handling and lead to bump steer. And you only get 1/2 the lift of the shackle length (a 3" longer shackle will give you 1.5" of lift).

You didn't say what vehicle you're lifting or what you're trying to accomplish, but a JK can swallow huge tires with relatively little lift.

Gdkerplunk03 06-24-2009 02:37 PM

i figured my vehicle was a given since i was in the yj forum but i have a 95 wrangler. what is the longest shackle i can install in addition to my 2.5" susp lift kit without running into problems or additional mods?

minderbinder3 06-24-2009 02:56 PM

You don't won't your shackles too long they supposedly give 1/2 of lift of their length, but don't be suprized if a 3" shackle only gives you 1" of true lift. The new springs will give more lift than you think because your old ones were probably starting to flatten out.

Gdkerplunk03 06-24-2009 03:59 PM

yea my springs are about as flat as can be. in the end i believe the max tire size ill go is 32" so im not really looking for alot of extra lift from the shackles. so 1/2" - 1" should be ok right? also i know your stance on the greasable shackles but what might i gain from them? and what about boomerangs? whats really the point with those?

minderbinder3 06-24-2009 09:25 PM

The greasable shackles are supposed to eliminate squeks because you can greas them (they have a hole drilled through the bolt with a grease fitting on the end). I don't like them because I haven't heard my front shackles squek (the new ones plus the old ones that were on there for years) and they make the bolt weaker from the hole drilled in them. The boomerang type look more modern and have a curve to them that is supposed to give some when flexed. I would say that with the shackles and the 2.5" lift you won't have any problems fitting 32's under it, but if you want to go bigger I would go with a 4" lift instead because it is a lot work to replace the springs. I went with the 2" lift, shackles, and 1" body lift and I have 31" mud tires and there is still plenty of room. I have a 4 banger and wanted to stay when it's capabilities.

dooder 06-25-2009 05:43 AM

i dont know if greasable shackles are weaker but my experience with poly bushings is that they tend to squeek but the pros of using them outweigh the cons and atleast with greasable i wont have to listen to sqeeky suspension which gets annoying fast. anyway the difference between greasable and regular is the bolts. just swap out for regulars.

Jon H 06-25-2009 08:47 AM

I bought a very heavy pair of daystar shackles for $100. they are welded. You can get them with no lift 3/4" of lift and 1 1/4" of lift.

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