K2500 lower control arm sizes???

[Chummins24v]

Hey y'all I bought a lower control arm from a wreckers for my 94 k2500 8lug, but the distance between both bushings is just under an inch wider than the old one, could this one have come out of a 3500?

 

[b454rat]

My understanding is that even a 1/2t will fit, meaning they are the same size. Its the uppers that are different. Hopefully someone else will chime in...

 

[454cid]

Post pictures of the control arms you have. As far as I know the frame side never changed, even when GM changed the arm design.

Did you possibly get 2wd parts?

 

[Chummins24v]

I did specify 4wd, the ears on the frame side could also have gotten bent now that I think of it, since the control arm is bent

 

[Chummins24v]

It says my file size on the photo is too large, but the arms both look exactly the same except for the one being a little narrower

 

[454cid]

It says my file size on the photo is too large, but the arms both look exactly the same except for the one being a little narrower

Maybe the bushings are just not in far enough on the "new" arms?

 

[Nad_Yvalhosert]

8 lug lower A-arms are 8 lug lower A-arms. SRW and DRW.
6 lug lower A-arms are 6 lug lower A-arms. 1500 or 2500 LD.
Unless its visibly bent or the bushings aren't installed properly, they're the same size

 

[Nad_Yvalhosert]

My understanding is that even a 1/2t will fit, meaning they are the same size. Its the uppers that are different. Hopefully someone else will chime in...

Correct

 

[Nad_Yvalhosert]

And for clarity...

 

[Schurkey]

8 lug lower A-arms are 8 lug lower A-arms. SRW and DRW.
6 lug lower A-arms are 6 lug lower A-arms. 1500 or 2500 LD.
Unless its visibly bent or the bushings aren't installed properly, they're the same size

Far as I know, there's three styles of lower control arms for 4WD GMT400 vehicles:

Stamped arm, bolt-on ball joint
Stamped arm, welded to forged end; ball joint presses into forged section. (I've heard of, but never seen this style.)
Forged arm, ball joint presses in.

They all interchange--same distances between the mounting points, same taper on the ball joint studs. So a "6-lug" arm would fit fine on an "8-lug" vehicle, and the other way around.

Please correct me if I'm wrong.