OK...revisiting this as i'm getting some conflicting information. Does anyone know if 3/4-1 ton hydramatics had the parking brake attached to the hydramatic or was this an 1 1/2 ton item? The tag on it has "CHT-55", which I have not been able to find any cross reference what it is from other then a 1955 model. I have found a "CH" refrence, but not CHT.

If anyone has pictures of 3/4-1 ton or 1 1/2 ton+ hydramatics I would appreciate them. I can't find any pictures of these online.


1955.1 GMC Suburban Hydramatic