There is no replacement of the gmt400 lower arms. You have to rebuild them. i have been there and done that. I even emailed numerous front end manufacturers, and they all declined to manufacture them. It is a problem.
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I would be very suprised if they did. If they have different part numbers probably not.Kinda got a question to add to this post, would anyone happen to know if they 2005 lower control arms for a 4x4 silverado fit in gmt400s? Ive located those and was curious if anyone had tried them.
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Worth a shot to ask, they seem similar and they use the same type spring for suspensionI would be very suprised if they did. If they have different part numbers probably not.
Indication seems to be be condition of OP’s LCA’s not worth rebuilding.It looks as though you may have to rebuild your vehicles LCA through the Moog Website
If they are in fact rebuilable if not try (EvilBay).
8-lug hubs. PITA.I have been looking for hours for replacement front lower control arms.
1997 Chevy K3500
454 Cubic Inch
IF (big IF) I'd understood what was involved BEFORE I bought pads and a caliper, rebuilt the other caliper, and bought both lower ball joints for my '97 8-lug JD7...They are discontinued. Junkyard is your best bet
I just posted a thread on a GMT800 brake upgrade on the brakes & axles sub-forum. Watch the video and the guy mentions you can use GMT800 lower control arms with the knuckle swap. Seems like a decent amount of work though, but honestly, not much more than replacing control arms to begin with. Depending on the rust you have you may actually just replace everything from a truck from the south.
Rest of the truck also needs quite a bit of work. Most of what i'm planning to do wouldn't be worth it to other folks. I like this truck, had it for 17 years so it's kinda grown on me.If your knuckles have rusted so badly that they need to be replaced, what does the rest if the truck look like?
The best way to find control arms for our trucks is doing a part number search on ebay.
I believe you are correct. Which makes lower control arms STILL available for these trucks.Searching the GM parts sites it appears that the ASTRO van AWD used the same LCA. And they are available. I am trying to verify this on other sites to be sure.
PN 15992480 for the right side. Any help would be appreciated. I found this one on GM parts store. The fitment chart shows both the ASTRO and the K series