u-joints

1959 - 1978, M151, M151A1, M151A2, Technical questions and discussions, regarding anything related to the M151.
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ldj1002
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u-joints

Post by ldj1002 » Wed Mar 09, 2022 3:27 pm

Is there a part # so I can get u-joints for front driveshaft local? Are all the u-joints on the m151the same?


Fil Bonica
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Re: u-joints

Post by Fil Bonica » Wed Mar 09, 2022 4:39 pm

There are two types.
Axle and driveshaft.

Dont have any civy equivalents.

I would be very careful with choosing anything other than originals.

Fil Bonica

ldj1002
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Re: u-joints

Post by ldj1002 » Wed Mar 09, 2022 6:58 pm

How do I know which I have?

nelwake
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Re: u-joints

Post by nelwake » Thu Mar 10, 2022 1:38 am

The u-joints on the drive shafts are one type and the u-joints on the propeller shafts (going to wheels) are the other type. I was able to get some many years ago for the propeller shafts at my local NAPA store. The older fellow working there measured the inside diameter of the cup and length of the u-joint shaft. They were a little bit more heavy duty than the NOS and seemed to work fine. I doubt if you can find anyone with the patience to measure the u-joints at the local auto parts store. All they want now days is for you to tell them what it fits on and as you know the m151 is not in their automotive books.

Tech3140
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Re: u-joints

Post by Tech3140 » Thu Mar 10, 2022 5:12 am

There use to be a list of civilian parts that can be used to replace the military parts on a 151.
I just bought a pair of 28 volt headlights from Napa auto parts. Listed as NAPA 4800-N.
The list also shows that the axle U-Joints:

Part #1-5900 and it’s made by PDQ (NEAPCO INC).

I bought 8 u-joints on eBay. They work great and I’m very happy with the parts.

Rickf
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Re: u-joints

Post by Rickf » Thu Mar 10, 2022 5:16 am

The ones listed as working as civilian replacements are not correct. They will work in a pinch but you will find that if you measure them they are shorter than the original so once the caps move out to the resting position in the yoke the cross will have a lot of lateral movement. This will cause vibration and early failure.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

Tech3140
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Re: u-joints

Post by Tech3140 » Thu Mar 10, 2022 6:08 am

Ok, so the part I just listed are not correct ? :o

That’s good to know.

Now the u-joints I got on eBay I know do fit and they are a bit beefy. And they do fit very snug.

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Thumper14
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Re: u-joints

Post by Thumper14 » Thu Mar 10, 2022 10:43 am

Ordering one right now! They ship quickly and are priced well IMO.

https://www.armyjeepparts.com/p-1356-un ... 07186.aspx

RonG
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Re: u-joints

Post by RonG » Sat Mar 12, 2022 7:43 pm

About 20 years ago i had a u-joint fail on a vacation trip to So. Utah. The failure was in Elko NV about halfway on the trip and too far to get to the destination and too far to go back home without a fix.

Anyway, the commercial available U-joint worked for what I needed. But... as was pointed out previously, it is not an exact fit. The cups ride in enough to be noticeable so they need to be pressed in as close to centered as possible. We continued successfully on the trip and back home.

At home i purchased a NOS u-joint and replaced the commercial joint. Here's my opinion: In a pinch the civilian u-joint works OK but I wouldn't take the chance on it as a permanent replacement. I look at this way, the joint is not going to fail sitting still in the garage. IT's going to fail under load at speed. The damage the axle will do flopping around to the undercarriage will far exceed the cost of the correct joint.

As an aside, many years ago there was a list of civilian 'replacement' parts from the apparently defunct http://www.muttmotorpool.com/Civpart.html . Here's the list (i take no credit for the list nor blame if these don't work) As this list is over 20 years old, don't expect things to be on the shelf.

1. OIL FILTER:
a) WIX 51515
b) Purolator L3001
c) FL-1A
d) FRAM PH8A
e) NAPA 1515

2. SHOCK (REAR): MUNROE 1641029 C5A73

3. SHOCK (FRONT): MUNROE 8359994 C1D82

4. SPARK PLUGS:
a) Champion 573 XMJ20
b) Champion XMJ17 (R)
c) AC WR46
d) Autolite AR7C
e) Military MS35909-2


5. FUEL FILTER (@ carb): PUROLATOR F10131

6. WATER PUMP: 58-421 (BIG A’s)
NAPA # 58-244

7. LIGHTS
a) Turn & brake bulbs: Westinghouse #1683
b) Running lights: Westinghouse #1251
c) Headlight: Westinghouse #4860, #4863,
#4800 (w/lugs)

8. FAN BELTS:
a)Goodyear: 15361 (11AV0900)
b)Goodyear 13T341
c)Gates N7340 (was 8239)
d)NAPA 25-08633 (was 270)
e)Dayco 15340 (was 384)

9. TIRES: 7.00 X 16” BF Goodrich Trailblazer A/P LT215-85-R16

10. BRAKE CYLINDERS:
a) (Rear): ¾” Bendix 33188
b) (Front): 1”

11. PISTON RINGS: Perfect Circle Chevrolet 250

12. FUEL PUMP: NAPA item number NFPM60577. This pump actually belongs to a
1965 Dodge Dart with a 225ci slant six engine. *Note*: There is no provision
for the fording kit air intake. Also the fuel intake opening is a pressure
fitting rather than a threaded fitting. In addition, the fuel pump from a 66
Ford Falcon or 60-67 Valiant is also compatible.

13. WHEEL BEARINGS: NAPA BR35 (LM501349/LM501310).

14. Axle U-JOINTS Part #1-5900 and it is made by PDQ (NEAPCO INC.)

15. Transfer case front output shaft bearing part number NACHI 6205 (NAPA)

16. Center output shaft bearing part number FEDERAL MOGUL MU-1206-TM

17. Rear output shaft bearing part number MRC G306-M2 This bearing is a special

order item, but is stocked by the manufacture.

18. RADIATOR CAP: NAPA BALKAMP 703-1422 ( it's a #10 cap.)

19. TERMOSTAT: Stant S-370H
NAPA-Thomson 191
Bridgeport 370-180
Dole DVN-23H
Gates 5538

Regards and happy motoring,
Ron

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Re: u-joints

Post by markrdje » Sun Mar 13, 2022 4:54 am

I think having the driveshaft balanced is important so the nuts stay on the U clamps of the u joints.One time I found the nuts loose so I had it balanced.Maybe my driveshaft was a 1 shot being defective, I don't know.
change user name to mark

Tech3140
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Re: u-joints

Post by Tech3140 » Sun Mar 13, 2022 8:43 am

That’s the same list I have.
I use a number of parts from that list.
But I haven’t used the u-joints yet.
I did use the fuel pump, headlights, taillights, spark plugs, oil filters ( I get filters for free ) and points/condenser for the distributor.


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