Need help locating a part.

If it's on a Chevy chassis, wouldn't it make sense to try a Chevy dealer? Preferably one that services the 4500 cab chassis, if that's what it's on?

Make sure you measure the sway bar diameter. These are also the same as Unistrut clamps. Need sample to go to electrical supply house.
O'Reilly Auto parts

I think you are talking about the SWAY BAR LINKS, at any auto store,
and not to hard to place yourself,
check on YOU TUBE on how to replace them yourself

Look up Hellwig and Roadmaster rear sway bars , 4500 chevy See if either of those bars match what you have.

My experience has been that if it is a roadmaster sway bar you need a roadmaster bushing. Even then be sure it is sold by roadmaster. I purchased

bushings/brackets for my front end on my class C Ford and they did not fit. Aftermarket import copycats are slightly off. Once i measured my bar

using a micrometer did I see the difference in size. I ordered what I believed and what was advertised as original equipment bushings for the front

end of my GMC 2500 and they were not the same. E trailer is a good source, very helpful with all my purchases.

I believe the OP is talking the rear factory sway bar.

enblethen wrote:
I believe the OP is talking the rear factory sway bar.

If that is so then the rear brackets would be These Brackets that attach to the rearend housing,I really don't see how they could fall off.

If he is talking about the Rear sway bar end link this would be it. Both hold the rear sway bar up,I can see how this may break.

If its the OEM factory sway bar shouldn't Chev have the part ?

enblethen wrote:
I believe the OP is talking the rear factory sway bar.

Whatever sway bar, my point was beware when ordering because the original and aftermarket are different size. IF there is no markings/tags on it how would one know?

AND how do they break? right at the bend. The bolt holds the tab to the frame and the bracket breaks where it is bent. The bar twists the remaining piece until the sway bar falls down. That's what mine did but in the front.

Thank you everyone I didn't even think to call chevy ?? got the part and I'm back on the road!