2nd Gear Pops Out
Thread Starter
|
New User
Joined: Aug 2013
Posts: 5
Likes: 0
2nd Gear Pops Out
I have a 1946 1/2 ton with rebuilt engine and tranny. The rebuild was in the late 90,a. If I do not hold it in second gear, it will pop out sometimes and make a noise that scares the bejesus out on you. I obviously will need to pull the transmission. What causes this and should I consider rebuilding the transmission again?
Fleet Mechanic
Joined: Apr 2012
Posts: 1,275
Likes: 134
Three or four speed, if 3, it could be a bad synco, or the syno teeth on the gear are worn, or too much back and forth movement in the main shaft. If 4 spd, may be 2nd gear is badly worn, or a shifter fork is bent.
Thread Starter
|
New User
Joined: Aug 2013
Posts: 5
Likes: 0
It is a 3 speed.
Senior User
Joined: Dec 2011
Posts: 128
Likes: 0
From: Coaldale, AB, Cdn
Shifter detents, input shaft bearing, output shaft bearing could be worth checking. I'd also look closely at the needle bearing between the input shaft and main shaft; they are often overlooked.
New User
Joined: Dec 2013
Posts: 3
Likes: 0
From: Livermore,Ca
2nd gear pops out
Check your main shaft end play. There is a spec as I recall. If you replace the bearings make sure the retainer rings are correct width and fit the grooves correctly, should be tight. I learned the hard way. The ones that come with the bearings may not be correct, and allow the main shaft assembly to move back and forth, which can cause it to pop out of gear!!!!
Thread
Thread Starter
Forum
Replies
Last Post
Big John Hance
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
8
Oct 5, 2022 09:40 AM
Captain Call
1973 - 1979 F-100 & Larger F-Series Trucks
2
Aug 26, 2018 10:20 AM
#8trx450r
Clutch, Transmission, Differential, Axle & Transfer Case
1
Jul 24, 2007 08:19 PM
Oval_obsessed
Clutch, Transmission, Differential, Axle & Transfer Case
5
May 3, 2005 11:17 AM
