Im planning to build a set of long arms for my xj similar to the rcx, and tnt long arms. Im building the lowers out of 2" DOM with 2.5" JJ on the frame side and rubber bushings on the axle side. I noticed that t&t, RCX, and rustys use smaller 2" wide joints on there upper arms where it attached to the lower arm. Can I use 2.5" johnny joints on the upper arm or will I run into any issues doing this? Also any pics of your homemade longarms would be great. Thanks
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Question about building long arms
- Thread starter brad3xx
- Start date
The reason the bolt on kits use the 2" joints are cost savings and packaging. A 2 5/8" joint would be fine if you can fit it. What are your plans for the cross member side?
That being said, I wouldn't waste the time building a set of radius arms. [opens can of worms]
That being said, I wouldn't waste the time building a set of radius arms. [opens can of worms]
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
Most use 2" bushings because they use their std upper control arms for the upper link,installing JJ's on the upper is not only a waste of money but it could cause issues, just use oem rubber!
ktm racer 419
NAXJA Forum User
- Location
- ROW DIALIN
you need rubber or poly on a radius arm to compensate for binding
ok thanks, Any certain bushing you recommend, Id like to get some that already have the threaded rod welded on, so I can make them adjustable.
Last edited:
ktm racer 419
NAXJA Forum User
- Location
- ROW DIALIN
luckily the dana30 already has a couple for the uppers. and i have seen them built with just those.
but many also throw some oem style bushings on the lowers as well.
there isnt really an aftermarket bushing i have used reliably
but many also throw some oem style bushings on the lowers as well.
there isnt really an aftermarket bushing i have used reliably
slappomatt
NAXJA Forum User
- Location
- San Diego CA,
This for sure. Radius arm long arm kits are a bad idea. Why not just make a 3 link long arm kit? Its only 1 more body mount and its not much harder to make. I will be doing this to my XJ along with frame stiffeners this off season.
1sickhick
NAXJA Forum User
- Location
- podunk wa.
So I ain't smart by any means but if you use a 2" round stock you would think you would use a 2" bushing.Why would you want to angle your bracket…think flush level mount compared to a "V" if using a 2.5"... My $.02
Jack
Jack
