Which U-joints for rear?
1984 FORD F-250 5.8L 351cid V8 Universal Joint | RockAuto
It looks like the "Spicer: brand choices have two different bearing cap diameters (1.062" & 1.125"). It looks like they are saying there are different caps sizes on the same U-joint. Is this correct? Seems odd if it is. See part #51204X or 51203X in the Spicer line. And what' the difference between the 03 and the 04?
This is for the rear driveshaft (single shaft), 82 F250 4x4 under 8500GVWR, BW1345, 133" wheelbase.
Does anyone know what the OEM part number is - that would ensure I'm looking at the correct choices in the various brands.
Also, what "series strength" are these u-joint (i.e. 1310, 1330, 1350, etc.)?
Thanks.
But if anyone knows - without going through too much trouble to share .... please post back.
Then go to the U-joint page: U-Joints - ???Gary's Garagemahal
Then go to the U-joint page: U-Joints - ???Gary's Garagemahal
Nice Gary!. I have to remember to start with your web site, then come here if I need more info.
Yeah, right. But, there is some info out there. And if you don't find it then let me know and I'll see what I can do.
Inside has a "C" clip that fits in a groove to the open end of the cap and sits on the inside of the yoke. Sometimes hard to see if there is a lot of grease & dirt.
Outside has a clip that fits in grooves on the yoke on the top end of the cap. Most of the time can be seen as it sits on the outside of the joint assy.
Dave ----
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It's listed for misc. 1965/79 F100/350's, but it's not listed for 1980 and later.
My former 1965 F100 8' Styleside had a 2 piece driveshaft, took 3 of these puppies.
And be aware that in Ford truck parts catalogs, if the truck has a 2 piece driveshaft: The front driveshaft is known as the coupling shaft.
Ford Trucks for Ford Truck Enthusiasts
My drive shaft is one piece (with slip coupler), its the longer one - 55-57" from yoke to yoke. According to Gary's website info, there is only one u-joint type for my setup (a type/code 42) which is a Spicer 1330 series. Same u-joint type used on both ends.
I'll measure the bearing cap diameter to be sure what I have.
It looks like there are only two choice in the 1330 series - a 1.125" cap (1-1/8) or a 1.0625" cap (1-1/16). The cap-to-cap distance is the same for both at 3.625" (3-5/8). The type 42 is a 1-1/8" diameter cap.
So I believe mine are the C3AZ-4635-M
According to Gary's website info, there is only one u-joint type for my setup (a type/code 42) which is a Spicer
1330 series. Same u-joint type used on both ends.I'll measure the bearing cap diameter to be sure what I have. 42 C3AZ-4635-M = 1 1/8" / 41 C3AZ-4635-L = 1 1/6"
It looks like there are only two choice in the 1330 series - a 1.125" cap (1-1/8) or a 1.0625" cap (1-1/16). The cap-to-cap distance is the same for both at 3.625" (3-5/8). The type 42 is a 1-1/8" diameter cap.
So I believe mine are the C3AZ-4635-M (replaced C3AZ-4635-H) '1330' Cleveland steel (aka mechanics) U-joint
The difference between Cleveland & Spicer u-joints are the location of the clips: On the inside or the outside of the cups.
The cups are also different depending on Cleveland or Spicer.
Didn't realize that. I thought the 1310 or 1330 or 1350 referred the strength of the u-joint and applied to all styles (even though it is a Spicer number/code).
My U-joints have the clips on the outside of the caps on the driveshaft and use "u-bolts" where they attach to the yokes.
C3AZ u-joints were used in myriad 1960's/70's cars. I got the specs for it from the 1965/72 car catalog, because finding the specs in the 1980/89 truck catalog is a PITA!
I have the clips on the "outside" of the bearing caps. Which is a "Spicer" type 1330 according the links posted above and from what I have looked up.
(sigh) Why is it that some members fail to mention info like this "up front" .. then add it later on in their thread, which makes it difficult for other members to figure out what part(s) are correct.The most blatant example of this that I recall was a guy w/a '75 F250 460, the left exhaust manifold was cracked.
When he got a used manifold from a 1976 F150 460 in a junkyard, it didn't match the original, as the exhaust collector was in a different location.
5 or so responses later, I asked if the 460 was original to his truck, or was it swapped in from something else?
Swapped in from a 1972 Lincoln, so...of course...the manifold was different.

If he had mentioned this swapped in 460 "up front" I would have told him to get the manifold from a 1971/78 460 car.















