I am new to the forum, and have been searching through the threads for part numbers for front and rear wheel cylinders. I have a leak in the drivers rear. Also, does the 2 speed dual rear axle require two cylinders per side?
welcome to the site!! that is a sharp looking truck! I believe the 59 is the same as my 58. Yes, 2 wheel cylinders per side on the rear. There were 2 different types, one with solid rubber cups, the other one, the cups are actually rings that fit over the piston. I don't have cylinder part numbers, I just put kits in mine. You should be able to get the kits and/or cylinders at Napa. Rock Auto may also have them.
Nice Truck. ðŸ‘🼠I have been looking for brake part numbers also. I’m redoing my brakes, wheel cylinders are next. 69Cuda is there a part number to the Napa cylinder kit?
Napa kits are shown below. For the rear wheel cylinders, there are 2 types, one with a solid rubber cup, the other one has a ring type cup. Mine were the ring type. rear wheel cylinder kit 1 1/2 bore, ring type UP 147 master cylinder kit 1 1/4" UP 33 front wheel cylinder kit 7/8" UP 129
Thought I would let ya'll know some stuff I have learned while rebuilding the brakes on my recently purchased/trying to bring back to life '59 c60 viking grain truck that was last tagged 21 years ago. In working on the brakes I found a master cylinder rebuild kit for 1"1/4 bore at NAPA part number UP33 and a reman master cylinder of the same size bore is part number P21698. It fit perfectly and was about $20 bucks more than the kit. And wonder of wonders, they had one in stock and do request a core exchange.
Question has anyone converted to a dual system type master cylinder on these larger trucks? Reason I ask is I worked with a fellow that had I think a 2 ton 57 Chev with a box on back for his vegetable, fruit business, broke a brake line going down a steep hill and crashed at the bottom into a building. I like pure stock old trucks but for driving one I'd want a dual system because of that story. So will the bolt in the stock position after market units work on the larger trucks, Ok?
Last edited by Truckrolet; 10/03/20225:53 AM.
Kicking self for selling off my Taskforce trucks. Still looking for an LCF or conventional big bolt in decent shape.
As of 10-26-2022, A 55.2 Taskforce long bed now the work begins
If your big bolt has a divorced brake booster then a dual master is going to dictate an all new plumbing design. My '57 has the master mounted on the frame, from there a 1/4" line goes to the Hydro-Vac mounted further back on the frame, from the Hydro-vac a 1/4" goes to a tee and then front and rear.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
I remember some Class A motorhomes that had a dual line master cylinder and two small hydrovac units. Front and rear brake systems were independent, but they required a pretty complex plumbing system. It would probably be more effective to keep the original system up to "as new" condition, and fit the driveshaft with a big manual disc brake setup. I don't remember the name of the company, but there is an aftermarket driveline brake that has enough power to lock up the rear wheels on a loaded truck. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
The twin shoe drum on my drive line will lock up the rears when it's empty, I never tried when I had it loaded with 110 bales of hay. I'm real happy with the original single master/Hydro-Vac system on this truck, now that I rebuilt the whole system including the Hydro-Vac, it does a great job. If it ain't broke-don't fix it!
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
Truckrolet I saw one of those disc brakes Hot Rod Lincoln describes,think I would do that rather than re-plumb the system. My 6400 has a drum on the tranny that is fine for a park brake but is a jumper when you are moving . Someone said working thru the differential ratio's was good on holding power and it is. That disc with a caliper looks best in the long run,totally seperate.
78 buckshot My 51 6400 totally stock is like that too,mornings I can climb on the brakes at my road on good hard road it'll slide em. Only improvement I'm seeing would be ABS. Can't stress enough how giving the booster hydraulic jack oil (as Jim Carter himself told me to do)helped the system. In the service book they call it Bendix vacuum cylinder oil used twice a year.
There are the dual system master cylinder kits that fit on a special welded bracket that bolts directly to the same bolt holes in the frame as the original factory unit does. They also have a kit that you can do the same thing, and is a boosted dual master cylinder (power brakes). That is why I ask. I'm not talking at all about Disk brakes, all that changes is separately connecting the front brake system to one chamber and rears to the other. It looks simple and easy, I will be helping a friend do this to their truck soon. And will do it to mine if and when I get it. Not big bolt, though. I'm thinking there maybe a bit more capacity to the master cylinder for the big bolts?
Kicking self for selling off my Taskforce trucks. Still looking for an LCF or conventional big bolt in decent shape.
As of 10-26-2022, A 55.2 Taskforce long bed now the work begins
