4300 or 4700 Parking Brake/Driveline Brake sourcing.

#1
Hello all, I was wondering if someone could provide me with a kit or number to obtain a parking brake for a truck I am rebuilding. My goal is to make it safer for limited on road use.

The truck itself is a 1957 GMC M135 (ex-military truck) GVW around 12,000 pounds. It has a CAT 3306 and an Allison 3200 tranny. T600 transfer case and meritor axles with hydraulic brakes. Sadly, it has no parking pawl. I would like to add a driveline brake off of an International 4300 or 4700. Although I would prefer the 4700 series.

I would like to use the above brake system with a SAHR (Spring Assist, Hydraulic Release), or preferably a SAAR (Spring Assist, Air Release). However, the first step is getting the unit and I keep running into the "I need a VIN or can't help you". None of the local wreckers have anything. I was thinking about mounting this on the input side of the transfer case.

Just wondering what you all think or looking for some suggestions.

Thanks,
letssled
 

mndriver

curmudgeon extraordinare
Supporter
#2
Most times you won't be able to source parts locally on military equipment.

By design.

Repair parts are just different enough like they are middle sizes.

It's a rare parts guy that can source them.

How do I know? National guard maintenance Sargeant for 15 years.

Always thought it would be kewl to have some of that military equipment. Til a major flood showed us how unfriendly it was to get parts
 

Tazz

Infidel
Supporter
#3
Most times you won't be able to source parts locally on military equipment.

By design.

Repair parts are just different enough like they are middle sizes.

It's a rare parts guy that can source them.

How do I know? National guard maintenance Sargeant for 15 years.

Always thought it would be kewl to have some of that military equipment. Til a major flood showed us how unfriendly it was to get parts
Basic design flaw in the bids process. If I sell a truactor to the DOD I want a leg up on the next round, so having parts that work on "my" models are already in supply. While a kniffler pin for the GM bid will require replacing 1.5 miliion kniffler ;)
 

mndriver

curmudgeon extraordinare
Supporter
#4
prevents soldiers from selling parts on the black market too or taking parts home and building a truck for free