[68 Firebird Brian]

I have "63GPman hitch" from my other 65 wagon. That does not come even close to this setup.

I guess my first set of pics do not do it justice.

The "tongue weight capacity" is a function of the frame installed on the car.
With the HD frame on this car it must have increased the towing capacity considerably.
The HD hitch was designed to carry a load leveller hitch. You can set the height of the rear of the car connected to trailer without extra springs. Uses 2 torsion bars connected to the hitch (car side). That's why they have the 3/4" plate steel. To offset the torsion force by the load leveller.

Hitch system Features:
- 5" x 47" - 3/4" STEEL PLATE (hitch receiver arm)
- 2.75" x 2" x 42" - 1/2" angle iron (connection to frame)
- 3.5" x 2.5" x 51" - 1/2" angle iron (connection to rear bumper supports
- 3" x 3.5" (OD) square hitch receiver (never seen one on a 60's car before)
- trailer wiring for lights and trailer brake control
- coil over shocks (cannot confirm if they were stock)
- load leveller hitch (I do not have it)
- 15" HP aluminum front brake drums (stock)
- HD frame
- HD cross member
- HD suspension
- HD brakes (15" front aluminum drums)


The Director of Flight operations, NASA Flight Research Center (for the X-1 projects), special ordered this car from Pontiac in 65'.

See attached pics...