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#1
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'84 300sd First step in rear end sag repair
Hi all,
I have what seems to be pretty typical rear end sag (the car, not me ![]() Thanks. Jack
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Jack 1984 300SD. 115k miles. |
#2
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just went through this on my 84 300d- for same reason-replaced diff mount, subframe mounts, control arm bushings, replaced 1 tab spring tabs with 2 tab spring pads.
now sits at stock spec. height when unloaded. Still dissapointed when I have full tank of diesel and veggie in back it still squats and cambers out back wheels. Thinking of going to stiffer springs for extra weight, and I pull a trailer sometimes that really squats it down. |
#3
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The SD suffered the same condition.
The solution was as follows: New diff mount One nub FRONT pads (8mm) above the spring Four nub REAR pads (23mm) above the spring. The SD sits high in the rear with no fuel and no weight in the trunk. It sits dead level with full fuel and about 75 lb. in the trunk. I'm quite convinced that these vehicles had way too much height in the front as delivered. This compounds the problem in the rear. Note that I had to go to the very limits of the pads on both front and rear to achieve the perfect result. This might be the partial result of some slight compression of the rear springs over time, but I haven't confirmed it. |
#4
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hello Jack,
My 190 was also a bit low at the back, so I replaced the pads and put the thickest possible (3 tabs for the W201). It improved the situation. I have attached a link showing what I did. Sorry it is spanish, but at least you get to see the photos to get an idea of the process involved. Regards gonzalo viewtopic.php?f=12&t=110383 |
#5
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Thanks, folks. Replacing the pads looks significantly easier than changing the subframe mounts. I'll certainly give that a try first.
Jack
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Jack 1984 300SD. 115k miles. |
#6
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Quote:
I changed them on the SDL...........didn't do a damn thing that I could see. The diff mount can get you 3/4" if it's fully compressed. |
#7
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are these the ones I'm looking for?
LEMFOERDER Coil Spring Shim,W0133-1638209 - PeachParts
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Jack 1984 300SD. 115k miles. |
#8
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Quote:
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#9
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Answer
Quote:
Rubber mounting, axle housing to frame floor unit, rear. MB# 1233511142 MEY Differential Mount,W0133-1622068 - PeachParts Rubber buffer, 19mm MB# 1153252444 LEMFORDER Coil Spring Shim,W0133-1638209 - PeachParts Rear spring MB# 1163241104 LESJOFORS Coil Spring - Rear,W0133-1618472 - PeachParts .
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ASE Master Mechanic https://whunter.carrd.co/ Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 2003 Volvo V70 https://www.boldegoist.com/ |
#10
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Quote:
Google Translate Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works |
#11
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thanks for that, Charlie. I hope google english is understandable enough.
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#12
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I replaced the coil spring pads on my 84 300SD about a week ago with the thickest Phil had, the 19mm ones. The shims, and new shocks, raised the rear of my car at least 1", probably more. The coil spring pads were cheap, less than $10 each, and have made a big difference so far. I think I will change my rear diff mount next as well, but I would suggest the new coil spring pads first and go from there.
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#13
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Quote:
![]() Edited: The only 23mm pads available are for the FRONT springs. Max on the rear are the three nub 19mm pads. Last edited by Brian Carlton; 12-08-2011 at 04:17 PM. Reason: factually incorrect information |
#14
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Strange
Quote:
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#15
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Request
Where did you find the 23mm pads, what chassis number are they from?
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