Just swapped out my 650000km old original manual gearbox and put a dogleg transmission out of 300SL, direct fit. I also replaced the upper shifter mechanism as the shift pattern is different. However I could not reach any info regarding the gear ratios of the 300SL manual transmission. With a fifth gear ratio of 1:1 and final ratio of 3.07:1, the car accelerates like a dream, on the negative side my highway rpm's are almost 20% higher now. Without sacrificing my lower gear acceleration too much, I think I will also replace the differential with a lower reduction such as 2.82:1 or similar. First I have to check the gear ratios. Any help on this matter is greatly appreciated.

Greetings from Ankara, Turkey.

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2001 E200 Kompressor Avantgarde
1987 300E 5-speed
1976 450SLC
1975 280S (sold)
1973 230.6 (sold)