I found a military document, has a lot of interesting vechiles in it. Anyways, it has truck labeled M108A2, 2 1/2 ton wrecker/crane, and under the vehicle characteristics it says multifuel.
Look on page 95 on the following link.
http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD0881479
Nice find!
TAB M (Truck, Wrecker, Crane, 2-1/2 Ton, 6x6, M108A2) to Appendix 2
(Special Purpose/Special Equipment Vehicles) to Annex F (Vehicle
Characteristics and Descriptions) to First Interim Report on
Tactical Mobility for Amphibious Assault and Post Assault Operations
in the Mid-Range Period (FY 1970-79) (CMC Project No.
30-68-08 of 10 December 1968.) (U)
PICTURE NOT AVAILABLE
( )
F-2-M-1
UNCLASSIFIED
UNCLASSIFIED
1. (U) GENERAL. This wrecker is used to tow, salvage and recover
disabled vehicles and equipment organic to the MAW. The vehicle has
been type classified Standard A and is a Navy procured item.
2. (U) VEHICLE CHARACTERISTICS
a. Net weight
(1) W/o winch 19,375 lbs
(2) W/winch 19,785 lbs
b. Payload (towed suspended, boom braced)
(1) Highway 3,500 lbs
(2) Cross-country 600 lbs
c. Crane rated lift capacities
(i) 17 ft 6 in. radius
(a) W/o outriggers 2,000 lbs
(b) W/outriggers 4,000 lbs
(2) 5 ft radius
(a) W/o outriggers 4,000 lbs
(b) W/outriggers 5,000 lbs
d. Towed load allowed
(1) Highway 10,000 lbs
(2) Cross-country 6,000 lbs
e. Dimensions
(1) Length
(a) W/winch 302-1/4 in.
(b) W/o winch 288-3/5 in.
(2) Width 96 in.
F-2-M-2
UNCLASSIFIED
UNCLASSIFIED
(3) Height 99-1/2 in.
(4) Height, lowest operable 93 in.
(5) Wheelbase 154 in.
(6) Tread C-C
(a) Front wheels 67-3/4 in.
(b) Rear wheels 70 in.
(7) Ground clearance 12.5 in.
f. Vehicle crew 2
g. Fuel
(1) Capacity 50 gal
(2) Type Multi-fuel
h. Electrical system 24 volt
i. Engine 6 cyl, 140 hp
J. Transmission 5 speed
k. Transfer 2 speed
1. Axles 3
m. Wheels 10 & spare
n. Tires
(1) Size 9.00 x 20
(2) Tread design NDCC
o. Ground pressure
p. Shipping dimensions
(1) W/winch 202 sq ft
(2) W/o winch 192 sq ft
F-2-M-3
UNCLASSIFIED
3. (U) OPERATIONAL CHARACTERISTICS
a. Turning radius
(!) W/winch 35-1/2 ft
(2) W/o winch 34-1/2 ft
b. Speed (max permissible) 58 mph
c. Fuel consumption 6 mpg
d. Cruising range (highway w/o towed load) 320 miles
e. Fording depth
(1) W/o kit 30 in.
(2) W/kit 72 in.
f. Gradeability
(1) Forward slope 60%
(2) Side slope 40%
g. Angle of approach
degrees
(1) W/winch 40
(2) W/o winch 48
h. Angle of departure 40
i. Max vertical step climbing ability
J. Vehicle mobility index
k. Vehicle cone index
F- 2-M-4 UNCLASSIFIED