Need help with oil steer clutch!

The 53Axxxx went from dry to wet clutches at s/n 53A1907. The outer wet drum 8H2401 seems to be unique to the 977. The only source I could find is https://www.machinerytrader.com/parts/search?page=1&partnumber=8h2401&searchtype=starts-with

The 53Axxxx went from dry to wet clutches at s/n 53A1907. The outer wet drum 8H2401 seems to be unique to the 977. The only source I could find is https://www.machinerytrader.com/parts/search?page=1&partnumber=8h2401&searchtype=starts-with

Sorry OM. The drum i was talking about was the clutch drum not the brake drum. Mine is good and the inner splines are the same for a number of units!

Funny thing the wet clutch discs were used for a very long time in a bunch of different applications just not sure all of them! Maybe just answered my question!! LOL

The 5m1199 is the wet disc for the 977H!

These come up using the same disc!:977H, 977K, 977L, D5B, D6C, D6D

Now do any of these cross to the 2M2960 or 8M1145 input shaft?

Doesn't look like anything interchanges between wet and dry steering clutches. To go dry you need the 53A1-1706 steering clutch assemblies which interchanges with a bunch of early tractors. Pinion flanges are also different.

Ya would have to change just about everything!
The brake band and all the clutch assembly is different!
Clutch parts would be easier to find but would loose the longevity of the wet clutch.
Hector (Gemdozer) found me an original drum thank goodness!
Saved my ass from having to do a build/test video! LOL
Thanks OM for the info!

I really find it funny that more than just a handful of units had the wet steer clutches compared to the drys!
I was looking at the build numbers and this chassis had like a 150,000 units and we are lucky if 15,000 were wet!

Would be interesting to see if you could build a wet clutch using parts from both!
The newer drys had room for 24 discs which should cross over to the wet with the 5m1199 as a substitution for the 1A3987.
Maybe squeeze 13 5M1199's into it with the heavy springs from the wet clutch.
Would be neat to put it together on a table and see what comes out of it!
Maybe an upgrade in the future! LOL
Track someone down that has a large supply of used parts handy and get a look at it! But not today!

Hi Team,
a similar sized machine that came out in 1963 with wet S/C's and Brakes was the D6C.
From experience as a general rule of thumb, originally the track loaders were beefed up versions of an equivalent sized Track Type Tractors--basically a 977 was a d6 with bucket linkage etc, and D7 undercarriage.

BUT, the Numerical Parts Record would show any similar used parts for both machines, just as you indicate but without success.

At some time I recall that on some machines (D4--955 for sure) there was a change to the inner steer. clutch drums to go from multi toothed steels to ,I think 4 or 6 teeth splines where the drum splines were tapered to allow a gradual take up of load and so help reduce shock loadings to the drive train.

Just some random thoughts.
Cheers,
Eddie B.

[quote="edb"]Hi Team,
a similar sized machine that came out in 1963 with wet S/C's and Brakes was the D6C.
From experience as a general rule of thumb, originally the track loaders were beefed up versions of an equivalent sized Track Type Tractors--basically a 977 was a d6 with bucket linkage etc, and D7 undercarriage.

BUT, the Numerical Parts Record would show any similar used parts for both machines, just as you indicate but without success.

At some time I recall that on some machines (D4--955 for sure) there was a change to the inner steer. clutch drums to go from multi toothed steels to ,I think 4 or 6 teeth splines where the drum splines were tapered to allow a gradual take up of load and so help reduce shock loadings to the drive train.

Just some random thoughts.
Cheers,
Eddie B.[/quote]

You are correct Eddie for the 977 for sure.
Do you have a serial number break for the wet clutch in the D6C? I haven't found one.
Maybe the same design and parts that are in the 977!
The drum that I have is/has 8 lug steels that have a taper in the drum for them.
Guessing a gradual release and engagement to help with the release as well to break the oil film as well.
Problem is that drum 7M2928/9 has been discontinued and so far there is no aftermarket that I have found!
That is why I was trying to come up with a different fix with the newer splined dry drum and the wet discs!
But hopefully I have a used drum coming from eastern Canada that will solve my problem for now!

Maybe someone else can come up with a more permanent solution for someone else later!