Trans Output nut

[Lee Hjelsand]

Question for those of that have rebuilt your 105/115 transmissions.
There is a nut on the output shaft that holds the guibo yoke on the shaft. It is peened to the cuts in the shaft. short of butchering it with a chisel, have any of you come up with a tool for removing it and then replaceing and torquing to the required 80 lbs I know there is an Alfa tool made for this but I doubt there are many around

Lee

[60sRacer]

There's a keyed washer behind the nut that is folded up to lock the nut. Just bend it back and you can remove the nut. I found a Craftsman 1 3/8 box wrench (really big!) works fine to remove it. Torque by feel?

Robert

[kengta]

Quote:

Originally Posted by Lee Hjelsand Question for those of that have rebuilt your 105/115 transmissions. There is a nut on the output shaft that holds the guibo yoke on the shaft. It is peened to the cuts in the shaft. short of butchering it with a chisel, have any of you come up with a tool for removing it and then replaceing and torquing to the required 80 lbs I know there is an Alfa tool made for this but I doubt there are many around Lee

[Lee Hjelsand]

Do you have a picture of the tool you made. I have been looking at 32 MM deep sockets but none are deep enough to go over the shaft and engage the nut. 32 mm is equal to 1"1/4 have looked at those also . no go. I have the nut off, as the PO did not tighten it when he was into the tranny, This allowed the fifth gear to move rearward about 1/16" when attempting to shift into 5th, and the syncro ring would not lock on to the syncro, with the result that that the lever would pop out of gear. The fork was worn almost in half as well as the ring on the fifth gear side. The dog teeth inside the ring are totally wiped out as he was holding the lever in position so he could use 5th. I need to torque that nut to 80 lbs.

Lee

[Bill77]

I found a 32mm deep socket at Auto Zone that worked perfectly. Also, you can slide one of the bolts on the prop forward until it contacts the trans case to stop it from turning while your torquing the nut.

The peened edge of the nut can be straightened by gently prying with a small screwdriver or punch. It takes very little effort.

[Andrew]

The staked part of the later-style lock nuts is pretty soft. You can pry out the staking from the slot with a screwdriver or pick tool of some kind, and stake it in its new location with same, or a small punch. I personally wonder how much locking feature such a soft "lock" has.

These output shaft nuts are notorious for coming loose, and wreak a lot of havoc when they do, usually blamed on exploding giubos. But in a few cars I seen do this, the giubo was a victim, not the cause. I check torque on these nuts as often as I can bring myself to pull the driveshaft out.

Andrew