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Old 13-01-23, 05:53
Bob Carriere Bob Carriere is offline
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Location: Hammond, Ontario
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Default Question for Rob Love......

Tie Rod Ends........ made of "unobtenium"


.....our in house parts guru who as connections with current army trucks....

Hi Rob

Looking for suitable tie rod ends for our CMPs...... hopefully something that fits the existing rod thread without expensive machining and strong enough for an over built CMP.....

I got some M9XX or M8XX series 5ton truck: NSN 2530-00-303-4923 LH
and......M9XX or M8XX series 5ton truck: NSN 2530-00-211-6111 RH

do we ever use anything like that in Canada...... apparently Eastern Surplus as them...... from the web pictures they look very similar...but are they the "same"????

I am going to take one tie rod part, some model on early CMP were rebuildable....... take pictures and measure the taper, thread size etc.

Meanwhile I will be blowing some of the forecasted 30 cm. of wet heavy white s**t overnight.

Anybody else crossed that "unobtanium" tie rod bridge please chime in....

Hoping that the results my be helpful to other shaky CMP owners!!!

Bob C.
PS Here are photos of my tie rod end and one that I bought out of curiosity listed as fitting a GMC 1947 to 54 HD truck....... looks like a midget and now will be a nice paper weight.......
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Last edited by Bob Carriere; 20-01-23 at 21:45.
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  #2  
Old 13-01-23, 13:42
rob love rob love is offline
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Join Date: Feb 2003
Location: Shilo MB, the armpit of Canada
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Default

Canada did use the M800 series of 5 ton, but without even looking at them I can just about guarantee that the 5 ton tie rod ends will be obscenely large. The 5 tons were just a M35 2-1.2 ton on steroids.



I can take a quick look today at work and compare the tie rods on our 5 ton wrecker (M-62) with the tie rods on some of the CMPs.



I have, in the past, also rebuilt a rod end by gutting a similar tie rod and moving all the internal components to the worn tie rod. The work was sound, but did require a couple of spot welds to hold the bottom washer onto the tie rod to close it all up. But this was in a wartime situation....not sure I would do it as a day to day repair.
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Old 13-01-23, 20:37
Bob Carriere Bob Carriere is offline
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Join Date: Mar 2003
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Default Any chance of finding specs... measurements....

Hi Rob

Got a prompt reply from Eastern Surplus...... inventory all packed away so no time to take thread measurements...... and if they ever fit they are expensive!!!

Can the NATO numbers be traced to specs....as in taper measurement, thread tpi and diameter...?

Going to hunt at Moog parts manufacture but need to take one apart for exact measurements.

But the snow comes first.

Bob C.
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Canada
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Old 13-01-23, 23:11
rob love rob love is offline
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2530-00-211-6111 (this and the other number you listed were used on the old gas 5 tons (M39, M40, M62 etc) from the 50s as well).

tapered bearing surface major diameter 1.249 inches minimum and 1.251 inches maximum

taper length 1.813 inches nominal

rod connecting end thread location internal
rod connecting end thread size 1-1/2 -12
rod connecting end thread series designator unf
rod connecting end thread direction right-hand
rod connecting end thread length 3.813 inches nominal
locking clamp type integral

When I check a nearby CMP I get a tie rod thread of 1-1/4, a maxh shank dia of 1" and a length of 1.5" for the shank length. Not a match.

I wonder if the front tie rods are more a marmon Herrington or Timken axle thing, since those were the designers of the four wheel drive axles used.
Another good place to check is find someone who will loan you a merritor catalogue. They have lots of photos and measurements.

Last edited by rob love; 13-01-23 at 23:23.
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Old 14-01-23, 02:44
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Robert Bergeron Robert Bergeron is offline
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I am looking for tie rod ends also . So i will be following this thread closely.
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Old 14-01-23, 03:26
rob love rob love is offline
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I had a quick look at some merritor ends and here is an example. Unfortunately it does not give the sizes: https://www.pillarsurplus.com/ROCKWE...-p/l010194.htm
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