Dieseltech

Well-known Member
Location
Akron, Indiana
Friend has the two speed Hydra Power in his 1550 diesel, wants to put in as over-under three speed from a 1755 that is parted because of extra block inspection holes. In direct the 1550 now runs 22.5 MPH with the high speed gears it has. What is the speed ratios on the two speed and the three speed between low-direct, and low-direct-over? Thanks in advance.
 
They call the over under the 20% speed changer. Underdrive is 20% slower than direct and overdrive is 20% faster. send me an mail Rich as that is not a direct bolt up deal. J.
 

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