The Ford Barn - View Single Post - Tremec T170 Transmission Universal Joint—Is it a stock Model A part?

kenparker0703 · 01-30-2023, 09:23 AM

The back end of the transmission output shaft should be (must be) perfekly flat. No ridges, no burrs. A thick washer (like the one shown in Bensons post) goes against the transmission shaft. The tab on that wahser fits snuggly into one of the splines of the tranny shaft - that keeps it from rotating - very important. Then the lockwasher. Then the bolt.

My guess on the problem is someone forgot the thick flat washer. As a result the bolt bottomed out in the hole/threads, and the ujoint was not TIGHT against the output shaft. Thus a tiny bit of wiggle that get worse and mo worse until you see what is pictured.

When you go back together make sure you have the Flat Washer, Lock Washer and a New Bolt. Also make double sure there is no - as in 0 - play betweem Ujoint and the splines in the output shaft. THAT UJOINT SHOULD NOT WIGGLE.

Keep us posted. ken

01-30-2023, 09:23 AM	#14
kenparker0703 Member Join Date: Sep 2018 Posts: 88	Re: Tremec T170 Transmission Universal Joint—Is it a stock Model A part? The back end of the transmission output shaft should be (must be) perfekly flat. No ridges, no burrs. A thick washer (like the one shown in Bensons post) goes against the transmission shaft. The tab on that wahser fits snuggly into one of the splines of the tranny shaft - that keeps it from rotating - very important. Then the lockwasher. Then the bolt. My guess on the problem is someone forgot the thick flat washer. As a result the bolt bottomed out in the hole/threads, and the ujoint was not TIGHT against the output shaft. Thus a tiny bit of wiggle that get worse and mo worse until you see what is pictured. When you go back together make sure you have the Flat Washer, Lock Washer and a New Bolt. Also make double sure there is no - as in 0 - play betweem Ujoint and the splines in the output shaft. THAT UJOINT SHOULD NOT WIGGLE. Keep us posted. ken