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I agree Jeepsinker. Better splits would be more effective. I would make 2nd and 3rd slightly taller based on my driving experience in an area known for ski lodges. Some of the grades I encounter during routine trips are impossible to pull in 4th let alone 5th. Not much your going to do without...

Hello Jeepsinker! That's good information. What the Deuce really needs is MORE GEARS for the main box. Any five speed manual transmission for a 14,000 pound Deuce is inadequate no matter what the ratios are, because the horsepower and torque available is at most 60% of what a commercial truck...

I can remember as a kid watching loaded trucks crawl up highway grades at 20 mph. I thought they were so cool. I myself used to drive a very heavy AWD International Harvester R-190 fire truck. It had a huge 6 cylinder Continental gas engine and a 5 speed crash box with manual steering! It was...

I agree with your observations 100%

Yessir! The Spicer 5sp in the Deuce is only 13.5" long from memory. That's pretty damn short. I checked into Spicer medium duty 6sp transmissions and they are more like 20" plus. You could cut and leagnthen the frame a foot or two between the transmission and transfer case like guys who stretch...

I've thought about this myself many times because I think the lack of gears is one of the Deuce's biggest design flaws. I understand that it had to be easy to drive and rugged, but the only heavy truck that has successfully used 5 speed transmissions is Mack. That's because in the mid-60's they...