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View Full Version : A few long arm questions


socal951xj
May 30th, 2013, 01:07
I am about to start buying the materials for my long arm build I was to use 1.75" 0.25 DOM with Jonny joints but I'm not sure what size joints to use. Any recommendations? Thanks in advance

Super D
May 30th, 2013, 05:03
A few recommendations for you. Search, search, then search some more. There are a ton of threads on this topic all over the place.

http://www.currieenterprises.com/cestore/Product.aspx?id=2629


But that'sthe the size what most people use when they're building their own stuff. Mostly go as big as you can fit.

PatrickXJ
May 30th, 2013, 14:31
Your answer is 99.999% dependent on the loads placed on that joint.

The rest is based on your wallet.

themauler
May 30th, 2013, 21:59
Never used them but the material details are impressive for the price

http://www.barnes4wd.com/Enduro-Joints_p_283.html

foxwar71
May 31st, 2013, 04:28
I'd step up to a little larger tubing, at least some 2x.25 dom. My buddy has 1.75x.375 in his front 3 link and both lower links have bends in them. While you're gonna want at least a .25 wall thickness, larger diameter is gunna be much stronger then just larger wall thickness. I run 2.25x.375 lowers and have put them thru a lot of abuse and contact, still nice and straight.

Johnnie Walker
May 31st, 2013, 17:01
I agree on 2"x.25wall DOM at a min for lowers

rockclimber
May 31st, 2013, 17:43
I'd go with this stuff for link material

http://www.polyperformance.com/shop/Synergy-Suspension-Heat-Treated-4130-Chromoly-Tubing-p-2384.html

in the 1-3/4"x.188 flavor.

then I'd run these joints
http://www.currieenterprises.com/cestore/product.aspx?id=2629

with these adapters (sized for the proper thread shank and tube size)
http://www.polyperformance.com/shop/Synergy-Suspension-Threaded-Weld-In-Tube-Adapter-p-349.html

Serious Offroad
May 31st, 2013, 20:26
http://www.seriousoffroadproducts.com/Suspension-Lift-Kits/DIY-Builder-Parts

http://www.seriousoffroadproducts.com/images/Large/Normal/TeraFlex/LrgJoint.jpg

cracker
June 2nd, 2013, 01:16
I'd go with this stuff for link material

http://www.polyperformance.com/shop/Synergy-Suspension-Heat-Treated-4130-Chromoly-Tubing-p-2384.html

in the 1-3/4"x.188 flavor.

then I'd run these joints
http://www.currieenterprises.com/cestore/product.aspx?id=2629

with these adapters (sized for the proper thread shank and tube size)
http://www.polyperformance.com/shop/Synergy-Suspension-Threaded-Weld-In-Tube-Adapter-p-349.html

I've been running that stuff for years.....amazing how you can drag Chromo over rocks for three years and it doesn't pit or wear.....or bend like 2x0.25 DOM does. I have been loosing faith in 0.25 DOM.....stuff is not holding up like you would expect....although a million times better than most off the shelf lift kits. :puke:

My only other suggestion is to run ruff stuff 1.25" heims.....long arm lifts generally are flat to the ground and even with heims don't transmit as much road vibration as one would guess. In fact, the last guy I had we put the poly performance 3 link brackets on with the ruff stuff 1.25" joints on DOM arms and he said it rode way smoother than it was when it was stock on stock poly joints and no lift....very happy to say the least.

The poly brackets are located here: http://www.polyperformance.com/shop/Synergy-Suspension-Jeep-XJ-Front-Long-Arm-Bracket-Kit-p-20680.html

The joints are located here:
http://www.ruffstuffspecialties.com/catalog/125RESET.html