Speedo drive gear
Thread Starter
|
4wd Low
Joined: Apr 2024
Posts: 12
Likes: 3
From: Michigan
Speedo drive gear
It appears the speedo drive gear in the tail piece of my NP435 is stripped out. I would like to replace, but I'm not having much luck finding seals and gaskets for that tail piece. Also, it is still in the truck but I do have the cover off in the cab so access looks fairly decent. Has anyone on here done this work? Is it a bigger job than I'm thinking? Any help is appreciated.
Lead Gopher
Joined: Aug 2012
Posts: 10,060
Likes: 1,612
From: Seattle
Focusing on the upper right corner of this drawing you'd remove 375646-S (aka 371887-S) from the output shaft and remove the flange. From there you should be able to remove the speedo cable if not already and the bolts holding 7085 on for access if needed and then be able to see it clearly and remove it from the shaft. 17285 in the drawing.
That first nut is torqued on pretty tight. Putting the transmission in gear can help lock the shaft so it doesn't spin.
That first nut is torqued on pretty tight. Putting the transmission in gear can help lock the shaft so it doesn't spin.
Last edited by TA455HO; May 5, 2026 at 12:05 PM.
Thread
Thread Starter
Forum
Replies
Last Post
RangerHaywood
1973 - 1979 F-100 & Larger F-Series Trucks
17
Aug 17, 2010 08:29 PM
'88_F-150
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
7
Nov 2, 2006 09:27 PM
78fordman
Clutch, Transmission, Differential, Axle & Transfer Case
6
Dec 24, 2003 12:57 PM
pinguin
Clutch, Transmission, Differential, Axle & Transfer Case
5
Nov 21, 2003 10:16 PM
