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Roy, here are those M84 pictures you wanted along with some info I gathered on this particular vehicle thats at Ft Irwin, CA. Hope this helps in what you're looking for.

M-84 4.2inch Self – Propelled Mortar Carrier

SERIAL NUMBER;

REGISTRATION NUMBER;

MANUFACTURED; 1954 through 1960 by The Ordnance Division of the Food Machinery and
Chemical (FMC) Corporation

TOTAL BUILT; Over 6,300 M-59 series family

HULL BUILD; By FMC plant in San Jose, California.

TURRET BUILD; M13 Cupola build is unknown at this time.

ARMAMENT; 4.2 inch M30 Mortar in rear compartment, one 50cal TTHB Machine Gun in the M13 Cupola

AMMUNITION; 88 rds of 4.2 inch mortar, 2205 rds of 50 cal

ARMOR THICKNESS; 1 inch in the floor, .625 inches in the front and sides

WEIGHT; 47,100 lbs / 23.55 tons

ENGINE; Twin GMC model 302, 6 cylinder, 4 cycle inline gasoline engines, producing 292 total HP at 3,600rpm

TRANSMISSION; Twin Hydramatic Model 301MG, 4 speeds forward, 1 reverse

FUEL CAPACITY; 135 gal, (100 mile road range)

SPEEDS; 27 mph on level roads, 3.5 mph max water speed

FORDING DEPTH; It floats

TRENCH CROSSING; 5 feet 5 inches

VETICAL OBSTACLE; 1 foot 6 inches

SUSPENSION; Torsion Bar, shock absorbers on first and last road wheel

CREW; 6; Commander, Gunner, Assistant Gunner/Loader, Two Ammunition Handlers, Driver

Particulars on this M-84
- The M-84 mortar carrier was based on the M-59 Armored Personnel Carrier. The mortar was mounted in the passenger compartment, facing the rear, and the roof hatches were reconfigured to include front, center, and rear hinged hatches, all of which folded to the front when the mortar was put into action. The escape hatch in the rear ramp was relocated from the left to the right side, and the mortar ground mount was then stowed on the left of the ramp.
- This vehicle has the later installed M13 commander copula with 50 cal MG
- With the mortar system and ammunition removed, passenger seats folded up, and the ramp down, a Jeep could be driven into the carrier compartment.
- This vehicle shows the markings, (green triangle inside a circle) of the earliest OPFOR, called “Aggressor’s�,
it was used Army wide from 1948-1965.
- The M-59 / M-84 series were eventually replaced by the M-113 / M-106 family of tracked APC’s in the early 1960’s.

Hi Jeff! Hi Folks!

Super set of photos! We don't get to see the top very often, thanks for taking the time to climb up and take that set of shots!

Question folks. Is that cuplo the same one that was mounted on the M48 tanks?

Super thanks Jeff!
Sgt, Scouts Out!

This was the best shot of the TC's coupla I could find on an M48, I'm not sure its the same as the M84's. Anyone care to comment?