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G35 Sedan V36 2007- 08 Discussion about the 2nd Generation G35 Sedan 2007 - 08

Sport Model Owners - Do we need to replace the VLSD?

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Old 02-22-2016, 12:43 PM
nineiron's Avatar
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Sport Model Owners - Do we need to replace the VLSD?
i read this on wikipedia about VLSDs:

Typically a visco-differential that has covered 60,000 miles (97,000 km) or more will be functioning largely as an open differential. The silicone oil is factory sealed in a separate chamber from the gear oil surrounding the rest of the differential. This is not serviceable; when the differential's behavior deteriorates, the VLSD center must be replaced.
How do we know for sure if we need to replace our VLSD? Has anyone done it?
 
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Old 02-22-2016, 01:31 PM
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well do a burnout and see if you have 1 or 2 stripes behind you lol. I'm not sure if anyone has done it, but I know a new viscous coupler costs upwards of $545....
 
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Old 02-22-2016, 04:49 PM
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You'd be dumb to replace it with another vlsd. A helical LSD would be the best way to go. Works similarly to a vlsd but with actual gears instead of discs that wear out.
 
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Old 02-23-2016, 10:38 AM
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205K here. Two stripes.

Jack it up and notice how hard it is to turn one wheel. Unless you are racing, or driving 10-10ths, I doubt you can scrutinize exactly how well it is performing to a specific percent.
 
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