Jacobsen Golf Course Tractor Brake Cylinders

I have a Jacobsen G10 golf course tractor that has a Ford engine, tranny, and Dana rear end for which I am trying to find replacement wheel cylinders. I've been
to NAPA and even reached out to Beck-Arnley, Centrix, and Raybestos, but no one has been able to identify the replacement wheel cylinder part number. I have the
Jacobsen part number and the Bendix number as given in the G10 parts manual, but these apparently are obsolete numbers that do not provide any hits when given.

I found front wheel cylinders that fit the backing plate but, of course, cannot connect flare brake line tubing to a front wheel cylinder because there is no
flare seal in the cylinder. I thought I had found another set for the rear but they are 3/16 inches too long. I need cylinders that are 1 1/8 inch bore and 2
13/16ths inches long. Other than pulling units off the shelf and measuring, no one seems to be able to identify the ones needed. I have been looking at Ford
wheel cylinders, but somewhere I read that some of the Jacobsens used Dodge rear ends and parts.
Any ideas on HOW I can find the needed cylinders? Any viable leads greatly appreciated!

I would try to adapt the cylinders you found that fit the backing plate to your brake line. There are various adapters available to convert different brake line fittings.

Could I suggest that you find out who the regional Jacobsen/Textron dealer is. Im sure some of the older mechanics/parts people would know.

Can u make the rear cylinders work by increasing the slot depth on the shoes by 3/32" ?

If they willhone out just buy kits,the cup size is molded into the old cups. With a Danna, I would expect them to be Bendix brakes,maybe a Ford or Chrysler antique car website.

That was my first thought I believe if I were within 3/16 I could grind enough off of something to
make it work.

Why not post the Jacobsen and Bendix part number/casting number. You never know what someone might know.

All you need is the bore diameter and an old parts guy with a Bendix paper catalog to match them up. Mine (1966 G10) used 1960's Ford F-350 wheel cylinders. You could also probably get pretty close looking at Rock Auto's website and the pictures there. They have plenty of wheel cylinders in their closeout section for under 5 bucks a shot.

I am currently working on a Jacobsen cousin, a 1950 Worthington G that originally didnt have axle brakes!!! It had a go-kart type mechanical scrub brake on the transmission output shaft which is pretty scary in a 40 mph capable machine. To remedy that engineering oversight, I retro-fitted the entire rear wheel brake assemblies to my axles from a 1980's Ford F-350. With a little grinding to the flange where the backing plated bolted to the axles , they fit up like they were made for it. If you cant find your exact parts, thats another option you can consider.

A quick search brings up a manual for a G10.

It shows it uses a Dana 60 diff.

The hardware shown is the design Ford used in the 70's on F250,F350 applications.

Measure your shoes and drums to narrow down your search.

For example if you have 12 x 3 brakes find the brake shoe listings showing which models used the 12 x 3 design.

Then check the corresponding wheel cylinder listed for that application for the correct bore size.

Do another search for that part number to find a photo of it so you can determine if it is the right one.

Thanks guys, for all the helpful replies. I think I have potentially found the correct cylinders, just waiting on verification of the length. The ones I have identified now were used on Ford 3/4 ton trucks between 1954-65. Those cylinders are WC15422 and WC15421.

Some had suggested that I post the G10 parts manual numbers given for the wheel cylinders. Here they are:

Jacobsen Numbers: 502524 and 502525

Bendix Numbers: 2229490 and 2229491

The wheel cylinders that I removed from the tractor bear casting number 5450 646 and 1 1/8 (which is the bore size). On the other side of the cylinder it says: Delco Moraine Prod., Dayton OH USA

An article I read on the Ford Moto-Tug remarked that the brake components on a 1952 vintage Moto-Tug were supplied by Delco Moraine. That prompted me to look for 1 1/8 bore wheel cylinders used on Fords in the 1950's. I had been searching for parts for a 1970 Ford F150. The search in the 1950's showed that the 3/4 ton trucks used a 1 1/8 inch bore cylinder from 1954 to about 1965. So, that's where my search has led to this point.

And, if the 14521/14522 cylinders don't pan out, I'll do as has been suggested and grind 3/32 inch off of the backing plate brackets so they will accept the slightly longer wheel cylinders I had tried beforehand.

So, good suggestions and tips! Thanks to all. I'll let you know if the 14521/14522 cylinders work.

Sounds like you are getting closer.

Using the Delco 5450646 casting number you provided, a search brings up that wheel cylinder on e-bay.
The seller's information states the application is 1941-1959 Chevrolet trucks.

Another seller states it fits the front brakes on a 1942-1948 Oldsmobile.

The next seller claims it interchanges with wc40877 and wc36041.

A casting number only gets you part way there as it may be machined for a RH or LH installation.
Bore size can also vary as can piston and or pin measurements.

Thanks for all the replies that helped me get to the needed part number. I have just received confirmation that the WC14521/22 cylinders are the correct length (and bore) for the Jacobsen G10 tractor application. Now to get a set ordered on put on!
Thanks again everyone!