Wanted: M135 Brake Booster Rebuild Kit

[rob love]

There was some commonality between the various airpacs, however I can offer some insight into this part number. Note that I have not seen the kit itself.....only the part numbers.

First, the part number of 35907-389250. The first part is a codification for the manufacturer. In this case however, 35907 is Canadian Army.

Jack sent me some further info including the full NSN, the supplier and the dates on the package.

The NSN of 2530-21-861-5692 tells us that it is a Canadian part number from around early 70s codification. The 21 is Cdn, and the remaining 7 digits are sequential. As benchmarks, a 1970 Jeep is a number of 856-9142 while parts for a 1976 chevrolet 5/4 ton commonly fall into the 21-870-xxxx parts range.

I tried to query the numbers at work, and they went nowhere, and I thought that would be the end of it. I also looked in my Canadian Deuce parts manual dated mid 70s, and it only gave a US NSN for the kit, along with a penned in later US numbered kit. But when I got home tonight, I remembered my old 1984 microfiche so I looked up the part number on there. It gives direct reference to the part kit being for the 2-1/2 ton.

The M35 did not exist in Canadian inventory at that time, so we would not have had kits made up for that purpose. And if the kit was for the 5 ton, then the microfiche would have reflected that.

The mystery deepens slightly when we find that the actual kits in question were supplied by Milquip (formerly automobiles rene gagnon if I recall correctly) in August of 1984. By that time, the deuce was very close to heading out the door. Some did remain in service as late as 1987 though, and back then (early computer days) it was not uncommon for the supply system to re-supply even if the vehicle type had left the service.

So there are the ramblings of a madman....take it for what it's worth. My money still says it is a kit for the M135.

[Dirty Deuce]

Wow! Thanks for all the effort Rob, it's much appreciated! I'll be taking a closer look at the kit and booster later this week and let you know how things work out.

[rob love]

A friend recently rebuilt his airpac, and found that one of the hardest parts to find was the little coil spring shaped like a mini-x-mas tree. that is located under one of the front covers. It took him a while to find a replacement, and he got one for me too. My truck's brakes, however, are working just fine, so I'll leave well enough alone.

[Dirty Deuce]

Found some better info on the kit. The actual military kit# is 7410844 and the GM # is 2283351

[rob love]

I'm not sure about your numbers. The Canadian parts manual gives a NSN of 2530-00-691-8631 which then gets superceded by 2530-00-846-6241. The GM number for both kits is 2297689. My manual is dated 8 Nov 1976.

Your part number of 2283351 does not show in the index for the Cdn M135.

Neither of your part numbers show in the Canadian catalogue of material, although these was a NSN of 2530-00-741-0844, although it shows no data.

Below are some other part numbers for the 00-846-6241 part number. Of interest is the first number as it is an International number. I would not hold my breath on any of these kits being available at your local NAPA.

Note that on the numbers below the first five digits are the NSCM (manufacturer's code).

31007 147711R92
89346 147711R92
92679 147711R92
23862 2297689
24617 2297689
14892 376037
24617 376037
73160 376037
19207 8331890

The museum here did send an airpac to Niagara military sales about a decade back, who sent it to a rebuilder somewhere around there. I think the rebuild ended up costing around $600 if I recall correctly. For that kind of money I would suggest picking up one of the more modern ones from the MLVW/M35 and plumbing it in.

[Dirty Deuce]

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Pic of the rebuild kit

[Dirty Deuce]

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