5 ton singles

[bigmech]

What is out there for my 5 ton to convert to singles and what is the largest tire I could run? Can the pump be turned up like my duece? What is the cruising speed of these trucks with the 1100 20's that are on it now. I had to tow it home and work on the fuel system so I haven't been able to drive it yet. If the pump can be turned up what is the exhaust temp I should stay below? I have never worked or driven one. I converting this into a camper and will travel long distances if possible. The Alaska roads are a perfecdt match for this truck but I heard it could use a little more power from the guy I bought it from. With my duece it took larger tires and rims , turning up the pump and the speed wasn't an issue anymore , but with this I'm starting over. Help!

 

[Westech]

14.00 is the stock military.. but I think you can fit the 16.00's

 

[G744]

1600's will fit OK. Might rub on a hard left turn. 1400's are easier to get along with, however.

The 5-tons are geared slightly faster than a duece as well. 6.44 vs. 6.722

If your truck has a miltifuel, the 1A motor is running just about at it's limit for longevity. Keep in mind it is just a 478 CI motor pulling around a 10-ton chunk of pig iron.

If it is an 800-series with the Cummins 250, a simple word on the turn-up: no. Adding a turbo is not a good idea either, as the piston cooling is not set up for it.

dg

 

[OPCOM]

This brings up a point: In the M817 I looked at, the dataplate speed was 50 maximum, and the manual says 2100RPM on the engine. So given the same tires, which 5-ton is faster, the multifuel or the cummins?

Or is there more to it? I'm sort of looking for a no-restore beater 5-ton to bob and put the big rubber on and do a little mudding, but want to be able to cruise on the highway. Things are far apart in Texas.

A reference for different tire diameters from 9.00x20 to 16.00x20 or better would be useful.

 

[TheBuggyman]

www.usa6x6.com has a chart that I will attempt to paste here:

MICHELIN FACTORY NEW TIRE SPECIFICATIONS

Size Tread Load Range Weight Loaded Radius in. Overall Diameter in. Overall Width in. Approved Rims in. Min Dual Spacing in. Revs per Mile Tread Depth 32nds
12.5 R 20 XL F 18.4 40.7 13.1 10.00 11.00 514 20
13.00R20 XL f 20.6 46.2 13.5 10.00W 10.00 14.7 482 32
14.00R20 XL J 22.6 49.4 14.7 10.00W 10.00 16.7 422 31
14.5 R20 XL L 19.8 43.4 14.4 10.00W 10.00 17.2 482 25
15.5 R20 XL J 21.3 46.4 15.5 10.00W 10.00 17.5 482 28
16.00R20 XL M 341 23.9 52.9 17.2 10.0W 10.0V 19.5 397 34

Size Tread Load Range Loaded Radius in. Overall Diameter in. Overall Width in. Approved Rims in. Min Dual Spacing in. Revs per Mile Tread Depth 32nds
395/85R20 XML G 21.3 46.7 15.4 10.0W 10.00 - 17.4 448 30

Size Tread Load Range Loaded Radius in. Overall Diameter in. Overall Width in. Approved Rims in. Min Dual Spacing in. Revs per Mile Tread Depth 32nds
16.00R20 XZL M 23.9 52.9 17.2 10.0W 10.0V 10.0 19.5 397 34