Quote:
Originally Posted by Doktor Bert
Good news....
I found a perfect 107 instrument cluster with 160 MPH speedo. The gauge face bears part number 107 542 28 01.
Bad news...
It came from an unknown donor.
There are no tags on the back to indicate what rear axle ratio it was originally used with....
I have attached a few photos of the cluster, including the back of the speedo itself.
On the back of the unit, the numbers '095/002 / 21' are stamped into the metal housing, followed by the charcaters 'W1155' and the numbers '9.76.'
The number '34' has been hand-written over the '21' (mentioned above) and the number '12' has been hand-written over the '9.76' described above as well. This would indicate to me the unit has been calibrated at some point, but to what specification????
below this group is a blue triangle ink stamp, with squared edges, that reads '112 1.77' and a similar looking green triangle that reads '30 12.75' respectively.
My intention is to install this into my W116 with a 2.47:1 rear axle with 205/70R14 tires and have it read correctly. I am in hopes that someone can either interpret these markings, or point me in the direction of someone who can.
Thanks very much for your help!!!!
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That "1.77" marking is a date code which means it was made in Jan. 1977. In 1977, the 450SL and SLC were the only 107s being imported to the US market. I think the 450SL had a 3.07 rear axle at the time. The only 107 I know that had the 2.47 was the 86-89 560SL. So, I would be on the lookout for a 560SL speedometer.
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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate
Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.
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