Building Long Arms
Thread Starter
CF Veteran
Joined: May 2012
Posts: 3,004
Likes: 1
From: Wilmington,NC
Year: 1989
Model: Cherokee
Engine: 4.0
What do I need to know before I dive into this? I want long arms but wanna be able to say "hey I built that" you know? What advice can you give to a n00b when it come to fabrication?
Thread Starter
CF Veteran
Joined: May 2012
Posts: 3,004
Likes: 1
From: Wilmington,NC
Year: 1989
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Dec 2010
Posts: 9,897
Likes: 2
From: shawnee,ks
Year: 1993
Model: Cherokee
Engine: 4.0
For lowers I'd use 2" .250 wall dom and either the same or 1.75" .250 wall for the uppers.
If I were you I'd be looking at a 4 link, you'd be needing a cross member, links, joints and good fab skill. While you are at it you should beef up the passenger side upper mount and replace the lower mounts maybe even truss the 30
If I were you I'd be looking at a 4 link, you'd be needing a cross member, links, joints and good fab skill. While you are at it you should beef up the passenger side upper mount and replace the lower mounts maybe even truss the 30
Trending Topics
Thread Starter
CF Veteran
Joined: May 2012
Posts: 3,004
Likes: 1
From: Wilmington,NC
Year: 1989
Model: Cherokee
Engine: 4.0
For lowers I'd use 2" .250 wall dom and either the same or 1.75" .250 wall for the uppers.
If I were you I'd be looking at a 4 link, you'd be needing a cross member, links, joints and good fab skill. While you are at it you should beef up the passenger side upper mount and replace the lower mounts maybe even truss the 30
If I were you I'd be looking at a 4 link, you'd be needing a cross member, links, joints and good fab skill. While you are at it you should beef up the passenger side upper mount and replace the lower mounts maybe even truss the 30
Old School CF Moderator
Joined: May 2010
Posts: 9,652
Likes: 3
From: Chattanooga
Year: 2001
Model: Cherokee
Engine: 4.0
If your asking these questions your not ready to build long arms.
You need to crawl before you walk..same applies here.
For what its worth..
I run a complete custom built cross member, somewhat similar to the claytons xmember, square lower arms, and a DOM upper arm.. I run a 3 link.
Your typical off the shelf LAs are radius arms..where the uppers are built onto the lowers..these are fine for most...however there are some down sides, at a point the radius arms will bind up.
For me the 3-4 link is a better option..
4-links are a bit tougher to fit under there but are very do-able..
The 3 link essentially just eliminates one of your upper arms. I run a drivers side 3 link and couldnt be happier:

You need to crawl before you walk..same applies here.
For what its worth..
I run a complete custom built cross member, somewhat similar to the claytons xmember, square lower arms, and a DOM upper arm.. I run a 3 link.
Your typical off the shelf LAs are radius arms..where the uppers are built onto the lowers..these are fine for most...however there are some down sides, at a point the radius arms will bind up.
For me the 3-4 link is a better option..
4-links are a bit tougher to fit under there but are very do-able..
The 3 link essentially just eliminates one of your upper arms. I run a drivers side 3 link and couldnt be happier:

CF Veteran
Joined: Dec 2010
Posts: 9,897
Likes: 2
From: shawnee,ks
Year: 1993
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Nov 2008
Posts: 7,874
Likes: 100
From: Northern Ontario, Canada
Year: 1990, 1999, 2000
Model: Cherokee
Engine: 4.0
the links are the easiest to make, it's the crossmember that needs the attention to detail.
get someone else to weld it if you even begin to second guess your welding skills.
get someone else to weld it if you even begin to second guess your welding skills.
Thread Starter
CF Veteran
Joined: May 2012
Posts: 3,004
Likes: 1
From: Wilmington,NC
Year: 1989
Model: Cherokee
Engine: 4.0
If your asking these questions your not ready to build long arms.
You need to crawl before you walk..same applies here.
For what its worth..
I run a complete custom built cross member, somewhat similar to the claytons xmember, square lower arms, and a DOM upper arm.. I run a 3 link.
Your typical off the shelf LAs are radius arms..where the uppers are built onto the lowers..these are fine for most...however there are some down sides, at a point the radius arms will bind up.
For me the 3-4 link is a better option..
4-links are a bit tougher to fit under there but are very do-able..
The 3 link essentially just eliminates one of your upper arms. I run a drivers side 3 link and couldnt be happier:
You need to crawl before you walk..same applies here.
For what its worth..
I run a complete custom built cross member, somewhat similar to the claytons xmember, square lower arms, and a DOM upper arm.. I run a 3 link.
Your typical off the shelf LAs are radius arms..where the uppers are built onto the lowers..these are fine for most...however there are some down sides, at a point the radius arms will bind up.
For me the 3-4 link is a better option..
4-links are a bit tougher to fit under there but are very do-able..
The 3 link essentially just eliminates one of your upper arms. I run a drivers side 3 link and couldnt be happier:
CF Veteran
Joined: Nov 2011
Posts: 7,387
Likes: 10
From: City of Trees, CA
Year: 93 2 door
Model: Cherokee
Engine: 4.0
if you started the thread like this
hi, I am a fairly experienced welder with access to materials for cheap. I am ready to order so-and-so feet of DOM
I have a rough design of what I want the cross member to look like
I was wondering what joints/heims/bushings to go with and also if someone had some measurements of their long arms for me to base mine off of
go find out most of what you need to know by reading. then come back and ask some informed questions
hi, I am a fairly experienced welder with access to materials for cheap. I am ready to order so-and-so feet of DOM
I have a rough design of what I want the cross member to look like
I was wondering what joints/heims/bushings to go with and also if someone had some measurements of their long arms for me to base mine off of
go find out most of what you need to know by reading. then come back and ask some informed questions
CF Veteran
Joined: Mar 2010
Posts: 6,685
Likes: 6
From: Jacksonville, FL
Year: 92
Model: Cherokee
Engine: 4.0
-build your crossmember first, THEN build your arms
-measure twice, cut once
-have it welded by a competent welder
Thread Starter
CF Veteran
Joined: May 2012
Posts: 3,004
Likes: 1
From: Wilmington,NC
Year: 1989
Model: Cherokee
Engine: 4.0
Im not bad on a welder but all I have is a 90amp flux core so Ill have my buddy weld it since hes got a mig that runs gas and a tig. Which would be better to weld it with a mig or tig just want the strongest weld possible


