Let me help here.
I own a 34 and 35 which are called High cabs and they offically went to mid 36 but, at the same time the 36 Low cab came out.
One way to tell the diff. Other than the overall design is this.
The cab from 34-36 High cab. : The cowel,A pillars,Roof and Rear/Back of the cab are in many Parts.
The 36 Low cab Cowel to the roof to the rear of the cab are all On Solid piece. and is just a little shorter.
There is very little wood in the 36 Low Cab and Do Not Use the doors for an example. The High Cab Doors lost all their wood and became Metal. So, Only refer to the wood.
Now, If you Figure you Do Have the High Cab.
You Can Use the 35/36 Chassis. the late to 36 chassis has hydrolic brakes and will fit your truck.
I hope this helps...
Poets Seat AutoAppraisals, Parts, ServicePast: General Motor's Master Technician
Member:
Northeast Chevy/GMC Truck ClubPhone Number: 413.774.5856
Collector of: 1951 Army Chevy Burb barn door,53 GMC COE,two 1934 Chevy Truck,1935 Chevy Army Truck.1950 Gmc Suburban clamshell these are just my chevy/gmc trucks.