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| | | Forums66 Topics128,196 Posts1,057,395 Members48,471 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: May 2006 Posts: 237 Shop Shark | | Shop Shark Joined: May 2006 Posts: 237 | Hey all. I just got through with some rear suspension and brake work. Lots of the parts are similar to those used on the big bolts (springs, pins, shackles, etc...). I've also got an overload spring that rides on "perches" different from what I've seen before.
Peggy put this in my profile, so click below and take a gander.
Any thoughts on the originality of the auxiliary spring "perches"? Thanks. | | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | A number of dimensions and parts appear to be similar or the same between a 3800 and a 4100.
I don't own a 4100 but do have two 3800s and both a 4400 and a 6400.
Some parts are very similar in appearace, and like I said already, I think there is some actual crossover on some parts in some years of 3800 and 4100. I draw that conclusion from stuff I've seen in restoration pack pages.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more... It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: Jul 2005 Posts: 226 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2005 Posts: 226 | what they call perches are the flats places that are welded onto the top of the axle where the srpings ubolt on... the part your talkin about are the overload stops or rests.. at least thats what i call them...those look like ya said..angle iron, the originals were curved where the overloads rode. on something that always carried a heavy load it wasnt unusual to wear out that overload spring..or the stops..... its just friction with no grease... looks like someone "fixed it" im surprised they werent just welded on fixed..... i can look,,, ive got a pair off a 59 one ton that im not gonna use....if you think ya need exact originals....\ oh....and P.S. one tons are big bolts... hehehe..
What it will say on my Tombstone: "Boy, that guy sure owed alotta people Money"
| | | | | Joined: May 2006 Posts: 237 Shop Shark | | Shop Shark Joined: May 2006 Posts: 237 | Weed,
Thanks for correcting me. Overload stops makes sense... I just didn't know what the word was.
They are angle iron, and they where welded on... but after they where originally bolted on and one of them had broke. I replaced it with angle iron.
Add to that the fact that there where only 3 holes attaching these to the frame, not the 4 that I've seen with other GM stops of the same era. I wonder if mine originally had overload springs? Either way I'm keeping em and I like it! Thanks for the offer for the "original stops" but mine will work just fine and I don't want to drill more holes through the frame.
The PO of mine halled asphalt and gravel with it after he no longer used it as a grain truck. Now that's a big bolt! | | |
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