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Old 07-19-2022, 06:33 AM
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Mikel Mikel is offline
Join Date: Aug 09, 2000
Location: New Haven, CT
Posts: 6,330
Originally Posted by fastjeep
Have a 6L80 trans from late gm, bolted to a 208 transfer. Only 1.5 inches longer than 727/208 with Advance Adapter to 360. With a 4.02 1st gear and 2 overdrives will drop cruise rpm's about 1400. My J10 has 4:10 gears with 33" tires so current cruise rpms about 3400. Will have about $2600 in parts to convert. I figure with that 1st gear ratio will help towing starts also.

Hi - How do you plan on controlling the 6L80?
1969 M715 6x6
1963 J300 Swivel frame
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