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#1
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Replacing trailing arm 126 in Denver--good price
Just a heads up that Elroy's Alignment in Lakewood replaced the trailing arm on my daughters 84 SD for $175 labor. I thought that was a very reasonable price if anyone else needs that work. I provided him with a used arm. I haven't crawled under and checked the work yet but I did drive it home successfully.
![]() I think I figured out why the old one rusted out. The spring seat had caused a hole in the arm so water could get inside the arm and cause the rust.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 Last edited by kerry; 11-21-2016 at 10:42 PM. |
#2
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The old arm.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#3
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I tried editing the thread title from trailer to trailing but without success. Can someone else do that?
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#4
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Quote:
Anything else needing editing, on here, just report it, and it'll get done! ![]()
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!! ![]() 1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#5
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Those thin metal formed arms are a work of art!
That does sound like a fair price on the labor.
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. ![]() ..I also have a 427 Cobra replica with an aluminum chassis. |
#6
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Yep that spring seat is the typical area for rust to start on those r107, w114, w115, w116, w123 and w126 rear control arms. I like to Por 15 the bare metal area the spring causes if I have the spring out to prevent that type of damage.
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1983 123.133 California - GreaseCar Veg System ![]() |
#7
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They are a work of art although I understand why MB decided to move to a cast aluminum trailer arm on the later 126 because that thin metal can't take the working of the spring over the life of the rest of the components on the car. If I had been doing the replacement job myself and seen the hole worn thru the old arm, I would have installed a heavy piece of rubber in the new arm prior to putting the spring back in.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#8
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I wonder if this could have been caused by the spring not seated properly. The depression where the end of the spring should sit look unmarked.
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85 300D turbo pristine w 157k when purchased 167,870 July 2025 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#9
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A bit of additional info. I was looking thru some paperwork yesterday and found a receipt where the PO had replaced this same trailing arm in 2016 and 29k miles ago. A broken spring was replaced at the same time. Both spring and trailing arm installed were used. So that used arm didn't last all that long, especially since I live in a pretty dry climate.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
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