The speedometer on my '80 300SD is shot. It only works if you slap the top of the dash, and the odometer and tripodometer have never worked since I installed it about a year or so ago. I have found a complete cluster for a '79. The part # on the face of the speedometer is different, and it registers 120MPH as opposed to the 85MPH on my 1980. Does anyone here know if the wiring plug ins and the speedo would work if I switch to the new cluster?

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1980 300SD 146K miles.

ab-

I would think the wiring would work, but the speedo scale will likely be wrong.

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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)

I don't know about the 79-80SD but I replaced my 81 300D cluster w/ no problems. The old spedo maxed at 85mph and the new one is 140. The readings were fine w/ no problem on all gauges, including spedo.

clint

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81 300D N/A 130K miles (Nelly)
87 300D Turbo 80K miles (The Scalded Dog...because it runs like a scalded dog)
95 e320 Wagon 104K
2003 Sprinter 47K miles.
1999 Tandem Bicycle
One beautiful low miles wife (who likes diesels) (that's my wife holding the sign)

My son and I fixing Nelly's odometer