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#1
11-26-2006, 02:33 PM
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Replacing Differential
How hard is it to replace the differential? I'm looking at a 124 TD that needs a new one. I can't find it anywhere in the CD manual. Is this a huge job? I can get a new one from the junkyard.
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Andrew 1989 Volvo 745- 202K 
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#2
11-26-2006, 03:34 PM
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I'd say it's a weekend job. Lots of bushings to consider replacing while you're down there. It might be less work overall to swap in an complete subframe with axles.
I don't think you'll find a 'new' differential at a junkyard  Seriously, check with the experts to determine what other cars have the same diff ratio as your car. Or maybe you want to experiment with a hill climber or freeway flyer. Sixto 93 300SD
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#3
11-26-2006, 04:07 PM
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I changed it on my 190. It's really not that difficult, the only thing you may have difficulty with is there is one nut to undo on top of diff. It's absolutely horrendous to get to.
Other than that, everything is logical and obvious. I don't think there's much difference between the W201 and the W124's rear axles, so it should be pretty similar. Good luck! 
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#4
11-26-2006, 04:51 PM
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I have a diff from a 87 300D. The ratios are different. I show about 9-10mph higher on the speedo than I am actually going. The drive shaft also had to be changed. However, after figuring for the difference I still am getting 29-32MPG.
If I remember, mine is a 2.64. Should be a 3.07.
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www.jerseyplanning.com 1987 300TD 440K - My car 2005 Jeep Grand Cherokee Laredo 107K - Tim's car 2000 - CLK320 100K - Deb's car 1994 C230 150K - Josh's Car
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#5
11-26-2006, 05:53 PM
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Quote:
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#6
11-26-2006, 08:22 PM
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Will the wrong model differential have any adverse effects on the car? Wheel camber and tread wear maybe?
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Andrew 1989 Volvo 745- 202K
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#7
11-26-2006, 08:25 PM
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No, just speedometer accuracy, acceleration and Cruising RPMs
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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine
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#9
11-27-2006, 05:28 AM
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how do you know it needs a new diff?
they are extremely rugged and seldom wear out! tom w
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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. [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#10
11-28-2006, 07:46 PM
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The owner replaced the transmission and put in a differential from a different MB with a different ratio.
I was looking at a 124 TD- already sold  .
__________________
Andrew 1989 Volvo 745- 202K
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