I may have to change the yoke that fits into the tranny due to the seal area being worn.
Does anyone know of and/or tried a fix for this that is inexpensive? We use items at work called "speedi-sleeves" to fix shafts in the seal areas, anyone heard of something like this for the yoke. I see that I can buy a new yoke but I wonder if I would have to rebalance the drive shaft?

I am also looking for a Speedi-Sleeve for my trans Yoke. I think that this should be no problem if we can find a long sleeve the right diameter.

Ken, I had the same problem on my '69 Muncie M20. I bought a used, like new one for $20 at the local driveshaft shop. They had a bunch of them due to the yokes being interchangable with Turbo 350 yokes. They saved them from junked T350's. Worth a try. von

Ken, I had the same problem on my '69 Muncie M20. I bought a used, like new one for $20 at the local driveshaft shop. They had a bunch of them due to the yokes being interchangable with Turbo 350 yokes. They saved them from junked T350's. Worth a try. von

You can find a "speedy sleeve" for the 350 tranny yoke. I have the same problem and asked a local auto parts store if something like this existed. Turns out it did. Think I paid around $23.00 for it. However, its only about 3/4" to 1" long. Just enough to cover the damaged area. The grooves on my yoke are located about midway on the yoke shaft and I'm thinking it may be difficult to drive a 1" sleeve down that far without causing some sort of damage. If it works, it's a cheap alternative.

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As a technician in a driveline shop, I would recommend AGAINST using any kind of sleeve for this. If the yoke is worn, the tailshaft bushing needs to be replaced. Yokes are easy to come by, and not that expensive, unless you are talking the performance ones, they can be a bit spendy, but worth it in the long run. If a yoke is changed, if u-joints are replaced, I recommend having the shaft balanced. Any change in the shaft from the original balance will throw it off. It doesn't take much at all. Also be careful when changing joints not to hit the shaft when pounding out the old joints. Any dent in the shaft will throw off the balance as well.

Also remember to line up the jerk fittings and point them towards the shaft.

My experience is get a new yoke. I have had some terrible driveshaft vibration problems. My local driveline shop recently charged me $10.00 to install a new bushing and seal in my tail shaft housing.
MikEC

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