'69 Tranny Yoke

[Don O'Connell #33101]

[Iron Duke NCRS #22045]

Re: '69 Tranny Yoke

The differential side yoke should have a round metal dust shield to protect the seal. This sounds like what you are talking about, but I don't know how it could come off unless you remove the yoke, which is retained to the diff carrier by a C-clip inside the diff.

Your second question is a little easier to answer. The axle halfshafts transmit much more torque than the driveshaft. Halfshaft input torque equals driveshaft input torque times the ring and pinion ratio.

Duke

[Iron Duke NCRS #22045]

Correction

Ignore the first paragraph of my post. I now realize you are talking about the driveshaft, not the axle shaft. Haven't got an answer.

Duke

[Don O'Connell #33101]

Re: Correction

Duke,

Thanks for the half shaft answer. The tranny yoke has (had) the piece that came off.

Don

[Gene M.]

Re: '69 Tranny Yoke

Don, If your splined yoke has a hole thru the center of it the round plug was pressed fit to keep the lubrication inside the tranny. Most splines are cast with a blind core, thus eliminating the need for the plug.

[Don O'Connell #33101]

Re: '69 Tranny Yoke

Gene,

That was my question. So I do need this "plug" to keep in the tranny fluid. Do you have any idea as to how this could be re-pressed on or is there any type of "new" plug that I could get pressed on? Or, I'm I looking at finding a "new" yoke? The original piece that fell out was just a circular, slightly concaved piece of steel.

I drove it about 100 miles this weekend, I didn't notice any puddles of tranny fluid (yet). I'll pull the drive shaft this weekend and get a close up look.

Thanks, Don

[Dave #24235]

Re: '69 Tranny Yoke

Ten years ago, I had that plug fall out on a ride back to Moline, Illinois, from Buffalo, New York. The oil came out on the trip and the bearings had to be replaced. If you have the original plug, hammer the concave out of it with head gasket cement on the edges IF the outer (bearing) surface is smooth AND the splines are straight. Otherwise, a new (expensive) yoke is cheap insurance on your bearings. - Dave

[Don O'Connell #33101]

Re: '69 Tranny Yoke

Dave,

Thanks for the input. So what your saying is I should "flatten" this piece out with the BFH, cleanup the mating surface on the yoke, and use head gasket cement to re-attach it?

Will be pulling it this weekend.

Don

[Gene M.]

Re: '69 Tranny Yoke

The cup shape is so it locks in (like a freeze plug) when wacked with a hammer. Do not flatten it out prior to installation, or it will not go in.

[Don O'Connell #33101]

Re: '69 Tranny Yoke

Gene,

So that would be the way I re-install it? Remove the yoke from the tranny, put it back in the yoke, concave side towards the yoke, and then whack it in place so it expands?

Thanks, Don