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#1
01-19-2009, 10:47 PM
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Lowering an SD
If anyone is planning on lowering an SD via cutting the springs, don't just cut 1 coil front and rear. The rear will be squatted bad. I luckily had several sets of springs to play with and get it right.
I found that 1.25 coils in the front and just over a half a coil in the rear will bring it down about 1.5" equally.
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 86 420SEL (sold) 85 380SE(in the graveyard) 
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#2
01-20-2009, 06:39 AM
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It all depends on how worn out the springs are. for example I did one coil front and rear on a 500SEL and put in 1-bump pads all around and it was perfect.
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 1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350
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#3
01-23-2009, 10:21 AM
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Yes this is correct, but I did it with 2 sets of springs both from SD's and had the same effect. My original springs were not sagging. It still had a fair amount of rake. My guess is the weights may be different enough on the diesels to make it different. Mine was also done without changing the spring pads. 1 nub in front and 2 nub in rear
Probably the reason the HR springs specify not for diesels. On a side note. I just weighed my 81 SD, 3740 with about 15 gallons of fuel and no driver.
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86 420SEL (sold) 85 380SE(in the graveyard)
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#4
01-25-2009, 11:05 PM
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wait a minute this confuses me regarding lowering a SD over an SE (W126 obviously), I installed a set of Eibachs on my friends diesel and it lowered the car quite nicely 1.5" with a small rake, 1 nub front 2 nub rear shims... Is there that much of a difference in Gas and Diesel Spring rates to matter when lowering the diesel?
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"Why operate within the law when you can operate above it?" MB roster '85 500SE euro Ratrod '92 500E's x2 / '94 E500 stored '91 560SEC w/43K stored '92 Cabby 16V OE 2.1 AutoX car JDM RHD cars now.
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#5
01-26-2009, 10:27 AM
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Why would there be a difference between gas and diesel as far as the springs go? Are the weights a lot different on the two?
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" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century  OBK #55 1998 Lincoln Continental - Sold Max 1984 300TD 285,000 miles - Sold The Dee8gonator 1987 560SEC 196,000 miles - Sold Orgasmatron - 2006 CLS500 90,000 miles 2002 C320 Wagon 122,000 miles 2016 AMG GTS 12,000 miles
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