M-37 & M-715 Hub to Gama Goat
Rim And Wheel Adapter
These are getting to be less popular as the supply of tires diminishes. I have left this page up for your info, and we can still sell the adapters upon special request.
steel plate adapters converts the 11:00 x 18 Gama Goat tire and
rim to bolt up to the five hole Bud on the M-37 or the six hole Bud on the M-715. We now have available the standard 8 hole plate
for 3/4 & 1 ton applications. This adaptation improves gas mileage
and increases road speed by about 5 mph. Air pressure can be run
as low as 10-15 PSI.
For example, the standard 9:00
x 16 is 112" in circumference.
The Gama Goat 11:00 x 18 is 126" in circumference and 40"
An increase of 1.125, or an increase of 45 mph to 50.6 mph.
Offset for the various tires by
laying them on the floor and measuring to the dish is as follows:
M-715 71/2" M-37 83/4" Gama Goat conversion 61/2".
So the Gama Goats tend to stick out farther to the outside than
the standard tires.
Adapters plates are 16 3/4"
in diameter and are machined out of 3/8 inch steel on a computerized
CNC machine, with the proper tapers milled in for the lug nuts.
The outside edges are also beveled to fit snugly into the Gama Goat
rim. Each plate weighs 20 lbs.
standard M-37 3/4 ton or the 1 1/4 ton M-715 cargo truck accepts
these wheels with out any problems. The entire tire will stick
out 3" beyond stock fenders on the M-37 and 1 1/2" on
the M-715 giving a wider stance to the vehicle. However, expect
some mud on your outfit. Increased flotation, and clearance is
increased to 13" under the pumpkins. This conversion works
great with stock gears and motor to give a more comfortable road
speed, and keeps the "military look".
Bolt kit consists of 32 9/16 x 1 1/2"
fine thread - grade 5 bolts with lock washers and nuts.
11:00 x 18" non-directional tires are available in new to
good condition at the below listed price. People have asked my
opinion on the performance of non-directional tires and I can
say that they work great in blow sand and great in mud. With a
V-8 engine, they are unstoppable in soft conditions
Price on a set of four plates with bolts is
I do not carry tires. Tires are available in the west from
the SMITH & EDWARDS in Ogden, UT They said that
they still have a semi-trailer load of real nice tires for $90.00
each. Contact Larry Johnson at (801)731-1120. Alex at Idaho Motor
Pool in Fruitland Idaho carries them from time to time. (208)452-5335
In the east, call
HARRISON MOBILE TIRE SERVICE in Jackson, TN at 731-423-8210, ask
for Ricky. RIV-RAD in Summerdale, Alabama still has some very nice tires for
$110.00 each. This is as of 3/15/2005. Peter Fitzpatrick in Houlton, ME at 207-532-9035 has 36 nice tires and rims as of March 2006.