Author Topic: Lock compensation differential or limilted slip diff  (Read 1799 times)

cfm65@me.com

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Lock compensation differential or limilted slip diff
« on: June 10, 2018, 13:35:29 »
Hi Gents,
Mercedes calls it a ‘lock compensation differential’ which I assume is what is commonly known as a limited slip diff.
My 250SL has a 3.69 rear end, which is supposed to be ‘optional equipment’
My question, how could I determine if this is a limited slip diff or not?
Regards
Chris
28 Ford Model A Pickup
29 Chevy Phaeton
67 E Type FHC
67 250SL 5 speed
83 911SC
2015 VW T5 California Pop Top

Jonny B

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Re: Lock compensation differential or limilted slip diff
« Reply #1 on: June 10, 2018, 15:17:01 »
One thing I recall is to jackup the car so you have both of the rear wheels off the ground. Then turn one of the rear wheels by hand. If the other wheel turns in the same direction it is limited-slip. If the other turns in the opposite direction it is a regular diff.
Jonny B
1967 250 SL Auto, DB 568
1970 280 SL Auto, DB 904
1966 Morris Mini Minor

cfm65@me.com

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Re: Lock compensation differential or limilted slip diff
« Reply #2 on: June 10, 2018, 18:05:37 »
TKS Jonny,
I’ll give a go and let you know.
Much appreciated.
Regards
Chris
28 Ford Model A Pickup
29 Chevy Phaeton
67 E Type FHC
67 250SL 5 speed
83 911SC
2015 VW T5 California Pop Top

hkollan

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Re: Lock compensation differential or limilted slip diff
« Reply #3 on: June 11, 2018, 13:44:33 »
Hi,

A LSD diff would also have a metal plate bolted to the rear of the differantial housing, with the instructions to only use oil for a limited slip differential engraved.

Hans
« Last Edit: June 11, 2018, 22:42:29 by hkollan »
Hans K, Cuenca, Spain
1968 280 SL 387 Blue met., parchment leather
1971 280 SL 462 Beige met, Brown leather
1968 280 SL 180 Silver, Red leather
1964 300 SE Lang 040 Black w/Red leather
1985 500 SL 735 Astral Silver w/Black leather
1987 560 SEC 199 Black met., Black leather

cfm65@me.com

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Re: Lock compensation differential or limilted slip diff
« Reply #4 on: June 11, 2018, 19:48:54 »
TKS Hans,
Much appreciated, I have not noticed the bolted plate you mention. I’ll have another look in the morning.
I am in the process of replacing the torque converter. The prop shaft is disconnected and therefor, as yet, I cannot determine if I have a LSD or not. However, I will report back ASAP.
Regards
Chris
28 Ford Model A Pickup
29 Chevy Phaeton
67 E Type FHC
67 250SL 5 speed
83 911SC
2015 VW T5 California Pop Top