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| | | | Joined: Jan 2016 Posts: 246 Shop Shark | | Shop Shark Joined: Jan 2016 Posts: 246 | Today all was well on a drive in my 1/2 ton with 3 speed shifter on the floor. Stopped at a stop sign after about a 1/2 hour driving and proceeded to go forward from first to 2nd with no problems but then it would violently pop out of 3rd.
Before I pull the tranny out and open it up i want to see if there is any other reason it would it would start giving a problem of this description.
I have checked the shifting rods and everything is good and tight and nothing has moved. With the engine off it will shift into all gears smoothly but with the engine running it will pop out of 3rd.....the clutch acts the same as it always has.
Anyone have any suggestions before I pull the tranny out ????
1953 chevy 1/2 ton with 3 speed 318 on floor and 1955 235 engine
| | | | | Joined: Apr 2005 Posts: 2,097 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,097 | You could jack it up with the wheels off the ground and disconnect the 2-3 shift rod. Put the lever in 3rd gear, start it up and see if it will stay in gear.
If it still pops out, you could have a worn syncro assy, shift fork, or both.
Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine
| | | | | Joined: Jan 2016 Posts: 246 Shop Shark | | Shop Shark Joined: Jan 2016 Posts: 246 | Thanks for the info Fred....I just tried it and it still wants to keep popping out....my niece wanted to use the truck for her wedding pictures but she will have to make other plans....
1953 chevy 1/2 ton with 3 speed 318 on floor and 1955 235 engine
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