350SL diff into 450SE - speedo correction

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B13

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Hi, I'm replacing my 3.07 single spinner diff in my 450SE with a 3.46:1 LSD diff from a 350SL.

Naturally this is going to put my speedo out of whack, so what is the best way to correct the error? I'm hoping someone will say put in a 350SE speedo and all will be fine, otherwise, please, give me the bad news..

:)

Ian.
 

Michel

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Hi, I'm replacing my 3.07 single spinner diff in my 450SE with a 3.46:1 LSD diff from a 350SL.

Naturally this is going to put my speedo out of whack, so what is the best way to correct the error? I'm hoping someone will say put in a 350SE speedo and all will be fine, otherwise, please, give me the bad news..

:)

Ian.

The real bad news is that I don't know.... :eek:
 

WGB

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As far as I know the calibration is only done through the different speedos not through gearchanges in the transmision.

Either a 350 speedo or a recalibration of your own speedo by an expert should sort out the correct reading.

Whatever you do the shift points on the speedo will be wrong but that is probably neither here nor there.

It has reminded me to check what is happening with the 300 km/hr replica speedo that I was getting made.

Bill
 
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B13

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Sounds like all I need is an instrument cluster from a 350SE...

Off to post a wanted ad in the appropriate section..

Thanx guys.

I.
 

Styria

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Hi B13, Bill has got it absolutely right. Your best, and most convenient, option is to have your speedo re-calibrated by an Instrument maker. I reckon it'll be difficult to locate a 350 cluster. Regards Styria
 

SELfor50

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Got a 350 Speedo... will bring it to winton for you on Sat ma brizzle...
 
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