M813 pros and cons

R Racing

Active member
2,767
8
38
Location
St. Leonard, MD
If you have it in low range it will move a mountain at lower speeds. But if your going for 40 and above they can be a bit slugish if your pulling a good load. There have been people on here who have added a turbo to them with not costing a fortune and good results.
 

EMD567

Driver for the Ga Mafia
Steel Soldiers Supporter
2,107
10
38
Location
Aiken SC
As long as you understand that you have a power band the size of a hair, and that you will never go fast(>50mph) An 813 will take you to the moon and back at 5 MPG.
 

Westech

CPL
6,088
145
63
Location
cow farts, Wisconsin
I get about 8 MPH in my M813A1... it will pull 50-55 MPH all day long and I cant even tell I have a 6k pound camper behind it. With 1400 tires it should do 55-60 all day. The engine has a Load of low end and will pull a house at 45 MPH.
 

MyothersanM1

19K M1 Armor Crewman
Steel Soldiers Supporter
1,878
93
48
Location
Culver City, CA
You're are not going to go anywhere fast in these trucks. BUT, you are going to look d@mn handsome doing it. They are designed and built for pulling/hauling heavy loads cross country. My short light-in-the-@$$ M818 does about 52-53mph @ 2100-2200rpms on the flat and level...downhill just a hair faster. Deadheaded I still tip the scale at close to 20k lbs. The gearing just will not allow for much higher speeds.
 

KsM715

Well-known member
5,154
124
63
Location
St George Ks
If you want to pull a 5th wheel trailer you need a M818 not the M813.

Unless you pull the bed, bolt on a 5th wheel and hack off the frame just behind the wheels.



None of the 800 series have a turbo. They'll pull a house if you want them to, just not at highway speeds.
 
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