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#1
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Hi Everyone,
Looking for a brake booster rebuild kit for my M135 Deuce. I've tried the usual military parts suppliers, with no luck. I appreciate any help I can get on this. Kevin |
#2
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Check over on the Steel Soldiers site in the "old deuce"section. There are a few threads on the older airpac. Apparently, the majority of the repair parts are the same as the airpac on the M35 family of trucks, and there is a supplier or two who will make up the proper kit for the M135.
We have a M135 running at work where the base maintenance installed a new M35 airpac and master cylinder. The new airpacs are significantly smaller in size to the old ones, so you have to extend some lines to plumb it in. We had some difficulties with the brakes on that truck afterwards, which I recently corrected. Note that if you use a M35 master cylinder, they have a residual check valve in them that the M135 does not have. You have to disassemble the new master cylinder, remove the check valve and re-assemble. If not, the brakes will drag. I have done a few of them now with success. The master cylinders are on ebay all the time for around $80 USD. |
#3
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[B]Dave,
I have 5 kits in stock, P/N: 35907-389250, parts kits, air hydr. brake. This is for the air over hydraulic brake booster. Jack |
#4
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Sent you a pm Jack
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#5
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Still looking. I'd even take a complete booster if someone has a good one.
Thanks for the info Rob. looks like I'll have a plan B now😉 |
#6
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I researched Jack's parts kits (at his request) and confirm the NSN is applicable to the 2-1/2 ton truck. I suspect they would be a pretty rare kit these days.
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#7
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Yes, I was down to his place today to take a look. Unfortunately, it's not for this truck. We sat with the parts book and some of the kit will work, but not all. Thinking it's M35 or even a 5 ton
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#8
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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. |
#9
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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.
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#10
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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.
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#11
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Found some better info on the kit. The actual military kit# is 7410844 and the GM # is 2283351
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#12
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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. |
#13
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#14
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#15
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#16
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Very early manual...neat.
Note that they refer to a serial cut-off for the kit you list: serial 1699 seems to be the cut-off. It may well be that the deuces after that number had a slightly different model of airpac, so over time they may have dropped the early kit and early airpacs. There is no reference to it in my 70s manual. |
#17
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Hi everyone.
RE: the little coil spring shaped like a mini-x-mas tree Yes this spring seems to be missing from all the kits I have seen/opened. I have one spring as a sample. Rob, where did your friend find a couple of springs? Thanks Dan |
#18
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Dan
I have shot him an email and will report back once I hear. |
#19
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Hi group
I have found the kit I have. on the carton label it reads: 2530-21-861-5692 parts kits, air hydr, brake P/N 35907-389250 qty1 SN OTT83-54963/1 packed by mil-Quip INC. 8/8/84 Last edited by DanJahn; 17-02-17 at 18:08. |
#20
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My friend advises it was likely Memphis equipment who had the spring. I'll post the NSN and part numbers for the spring here a little later.
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#21
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I have edited my previous post regarding the label on the air pack kit I have located.
I f anyone could shed some light on if this is the correct kit for the M135 family of trucks I would appreciate it. I do know the kits came from a supply of surplus m135/m211 parts here in Canada. They were bought at a DND/ Crown Assests auction. Thank you Dan |
#22
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Dan
If you go back to post #8 in this thread, I mention that the old microfiche tells us that it is applicable to the 2-1/2 ton, so yes, it will be for the M135/M211. |
#23
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The kits I have are marked with exactly the same information that Dan posted above. But they do not appear to be correct for the truck that "Dirty Deuce" is working on.
Could someone perhaps post a picture of a known M135 booster unit? Jack |
#24
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Here is a shot of the airpac from the last deuce manual.
Would one of the guys with the 5962 kit list the content part numbers and I can compare them with the manual. |
#25
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Rob,
Here are the contents of the kits I have; 7376456 body assy. 8331888 fitting 8331892 piston 7376692 piston 7376741 spring 7376727 ring 7376690 packing 7410861 wick 7376685 gasket 7376746 valve assy. 7410854 rod There is also an unmarked package of seals, O-rings, gaskets & a diaphragm - about 15 pieces. Jack Last edited by Jack Innes; 19-02-17 at 00:31. |
#26
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Some of those part numbers show up on DD's parts listings above. I'm pretty sure if he shows more of the page, more of those numbers might be there.
I tried a bunch of the numbers on the government catalogue, and they are long obsolete, so that pretty much indicates they were not used on the M35Cdn (MLVW). |
#27
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My kit has the same parts in it has Jacks except I have an extra ring part # 7376727.
My guess is Jack just missed seeing it in his kit. 7376456 body assy. 8331888 fitting 8331892 piston 7376692 piston 7376741 spring 7376724 ring 7376690 packing 7410861 wick 7376685 gasket 7376746 valve assy. 7410854 rod There is also an unmarked package of seals, O-rings, gaskets & a diaphragm Anyone figure out yet what airpack Jack and I have kits for? Thank you Rob for trying to help us sort this out. Thank you Dan |
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