Lower Control Arms Help

[alpinecrick]

The K1500/2500/3500 Originally came with stamped LC's that had a riveted ball joint. Later models came equipped with stamped/forged combos that had a pressed in ball joint and the very late models came with fully forged LC's with a pressed in ball joint. I don't remember the break down for the years but there is a thread that spells it out here on the forum

You are correct now that I remember. I do recall my 91' LD K2500 LCA's had pressed in BJ's, so it must've been only the first couple years?

 

[eran tomer]

not sure really.

 

[Schurkey]

After fighting the riveted-in lower balljoints on my 1993 K1500 RCSB I decided to chalk it up as a loss and I’m currently in need of new control arms

Designed like these?

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Pretty sure that's going to be "Treasure Yard Only". Don't forget to install new bushings at the frame end. I prefer Polyurethane, they're enormously easier to install than OEM-style rubber.

The UPPER arms are different between 1500 and the 8600-lb "HD" 2500s. I don't know about the lower arms--I haven't measured them.

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[90 Silverado]

Had the same problem with one of my 92 JBody LCA's , ended up drilling out the rivets.

Was not fun, had to weld washers on the LCA for the buggered rivet holes, ( after trying to air chisel them out), has held up now for 2 + years.......

Doug in P.R.

 

[ItsMarty]

Designed like these?

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Pretty sure that's going to be "Treasure Yard Only". Don't forget to install new bushings at the frame end. I prefer Polyurethane, they're enormously easier to install than OEM-style rubber.

The UPPER arms are different between 1500 and the 8600-lb "HD" 2500s. I don't know about the lower arms--I haven't measured them.

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that’s good to know, hopefully someone can chime in about the lowers.
I’ve got polys for all the control arms, leafs/shackles and body mount bushings that I’ll be installing

 

[ItsMarty]

Had the same problem with one of my 92 JBody LCA's , ended up drilling out the rivets.

Was not fun, had to weld washers on the LCA for the buggered rivet holes, ( after trying to air chisel them out), has held up now for 2 + years.......

Doug in P.R.

I’d consider doing that with mine but after they got as hot as they have I don’t trust them anymore. Off to the junkyard! Lol

 

[Jcauli82]

I actually made a post on here a couple years ago asking about aftermarket lcas for the k series vehicles and they don't exist your just gonna have to go treasure hunting in the treasure yard and hope you can find some decent ones

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[ItsMarty]

I actually made a post on here a couple years ago asking about aftermarket lcas for the k series vehicles and they don't exist your just gonna have to go treasure hunting in the treasure yard and hope you can find some decent ones

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I’m surprised no one makes LCA’s for how common these trucks are, do you know if the K1500/K2500/K3500 LCA’s are the same fitment-wise?

 

[ItsMarty]

I found and purchased a used set of forged/casted LCA’s online off a 99-2000 GMT400. I’ll chime back in here on fitment.

 

[JayMB]

I have a '99 K2500 all forged LCA on my bench right now. I can provide measurements if that would help.