Charts defining AXLE Shaft ID by Physical Details like Length, Width, Splines?

[ke6rwj]

I have several shafts that are new but can't find a number on them at all. Is there charts that would help to identify the vehicle variant that they will fit? Something like this would be very helpful when parts hunting at swap meets and shows..

Something like:

- Length: (measure by measuring tape with the shaft standing straight up...
- Width of shaft
- Spline count

Measurements are "Eyeballed"

Length​	Width​	Splines​	HMMWV Model / Year -ish​	Civilian Part Number​
24.5	1.25	27
27	1.25	27
29	1.25	27

- Other identification methods?

ideas?

-- Chris

 

[Coug]

If it is round at the differential end, then it's a 7 or 10k. can be used interchangeably.

If it has 3 flat sides, then it's a 12k.

then for the 12k shafts on the left is how the solid brake rotor and ECV/REV mount to, so smaller center round portion on the face. Right is for early vented rotors

To borrow a post from another forum

Re: 12K Half Shafts, large flange vs small flange
Post by Ted Gates » Sun Jan 27, 2019 6:55 am

There are at least 2 styles of 12k, 12" vented rotors. Wilwood 12" rotors use small flange and has a different offset than the other vented 12" rotors.

I've built all three 12k types:

If you are building a true REV, then you require small flanges on differentials, Wilwood vented rotors, 12k small flange halfshafts.

If you are a building an ECV or M1114/13 or early M1151/52, then small flanges, 12k solid rotors, small flange half shafts.

If you are building a 12k A2 truck, then large flange, 12k vented rotors, large flange half shafts.

FYI, 10k trucks use 10" vented rotors and large flange 10k half shafts

12K Half Shafts, large flange vs small flange - G503 Military Vehicle Message Forums

 

[Mogman]

I have several shafts that are new but can't find a number on them at all. Is there charts that would help to identify the vehicle variant that they will fit? Something like this would be very helpful when parts hunting at swap meets and shows..

Something like:

- Length: (measure by measuring tape with the shaft standing straight up...
- Width of shaft
- Spline count

Measurements are "Eyeballed"

Length​	Width​	Splines​	HMMWV Model / Year -ish​	Civilian Part Number​
24.5	1.25	27
27	1.25	27
29	1.25	27

- Other identification methods?

ideas?

-- Chris

If you are talking about half shafts the shortest one would be LF, the longest RF and the intermediate would be rear R or L.
Coug listed an excellent way to determine load capacity.