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#16
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I'm going to second Brian Carlton here by saying that maximum difference in rear height on a 126 car is going to be from springs, and to a limited extent, shocks, if they have gone bad. I never see much of a difference from new subframe mounts. Hadn't considered the role of the diff mount, and I'd like to explore/hear more about it's and the subframe mounts' role in proper rear end alignment. But don't forget the metal tube in the center of the subframe mount. It is going to put a hard limit on the amount of collapse that can occur, and when you install new mounts and torque down the 24mm bolt through the center, it collapses them anyway!
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#17
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I don't recall a 24mm bolt anywhere in the 126. Nothing even close in our 3/4-ton Suburban.
Yes, I know what you meant Sixto 87 300D |
#18
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Sixto 87 300D |
#19
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It would appear that the subframe and diff mount locations would be an important starting point for correct and equal ride height for alignment purposes and the springs and rubber spring pads more to correct the ride height itself. Both are relative to each other and the deterioration of the subframe mounts and diff would perpetuate wear on other springs and shocks and rubber bushings in the rest of the rear suspension system, especially if one side was worn more than the other. Would this be considered like a three link suspension system then? Last edited by macdoe; 03-05-2013 at 10:26 PM. |
#20
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ok so i have not done any of this yet. i have my HD bilstein shocks in the cart. Daniel at PP recommends replacing the springs as well at 300$+. what about rubber parts that need to be replaced. also i am curious about a slight vibration in the rear with some weight in the trunk. how often are the bearings redone?
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#21
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............no surprise there..........
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#22
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The rubber parts in this list are the spring pads, subframe bushings, trailing arm bushings, and diff mount. There might also be the trans mount and driveshaft support and bearing to consider, if you have vibrations but that is hard to say from far away. -could be vibration from suspension geometry being screwed from sagging and warn suspension related parts. |
#23
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-pay special attention to Brian's use of the THREE NUB rubber spring pads... Last edited by macdoe; 03-05-2013 at 11:07 PM. |
#24
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thanks folks , that is what i needed. i am going to get with daniel to see what sort of deal he can make me. also i think i am having starter troubles. is the starter servicable?
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#25
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I am trying to get my head around the geometry of the rear subfram on the sd. Would placing a plate as a shim between the diff mount and the body make the rear end sag better or worse? I too am dealing with sag but have other things to deal with as a priority. Just looking to cure the symptom for now and deal with the cause later.
__________________
1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing. |
#26
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Fast and cheap and totally improper, but...........it'll probably work for you. |
#27
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FYI
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PeachPartsWiki: Replacing the Rear Shocks & Springs .
__________________
ASE Master Mechanic asemastermechanic@juno.com 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 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/ |
#28
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FYI
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Those bolts are not 24mm. If they take a 24mm socket, they are M16. |
#29
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all done . after new shocks and springs and new seat pads and seat spring repair the 300SD is a new car. i am glad i went with the comfort shocks and springs, it is truly an awesome ride.
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#30
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just IMAGINE a 24mm bolt being used on this car! THAT'D create some sag!!!
__________________
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 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
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