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Joined: Apr 2011
Posts: 85
R
Shop Shark
Shop Shark
R Offline
Joined: Apr 2011
Posts: 85
Have a 52 Chevy 3100 pickup w/ 4 speed tranny. Has new pressure plate, clutch, & throw-out bearing. After messing with the clutch adjustment, I heard a clunking noise then shifting into 2nd gear but no other gear (engine was off). It would freely shift out of 2nd, but every time shifted back in - "clunk". Rats, after starting engine I shifted into reverse - worked fine. Then went into 2nd, heard clunk. Now it is stuck in 2nd & can't get it out. Did I mess the clutch up? Any help would be appreciated soon, as I am to sell the truck in 2 days & I was just trying to tweak stuff prior to it's sell. Thanks. Bob

Joined: Feb 2001
Posts: 1,094
T
'Bolter
'Bolter
T Offline
Joined: Feb 2001
Posts: 1,094
Did you take the shifter off of the top of the transmission? If so maybe not aligned right when you put it back.


Tommy
59 apache 1/2t
261 short stepside
Joined: Apr 2011
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R
Shop Shark
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Joined: Apr 2011
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Never taken top off.

Joined: Feb 2004
Posts: 29,868
H
Kettle Custodian (pot stirrer)
Kettle Custodian (pot stirrer)
H Offline
Joined: Feb 2004
Posts: 29,868
If the shift lever was removed (not the top of the transmission) it's possible to get the exact symptom you're describing if the shift rails aren't aligned properly when it's re-installed.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
Joined: Apr 2011
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R
Shop Shark
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Have never taken the shift lever off either. I'm starting to think it may be in the tranny?

Joined: May 2005
Posts: 8,878
G
.
.
G Offline
Joined: May 2005
Posts: 8,878
Perhaps a broken spring that keeps whichever shift rail in gear.
I’d remove the shift lever (not the whole top yet) and see how it looks in there, even use a big screwdriver and work each shift rail forward and back to see how they feel. Might help to jack up one wheel and have someone slowly turn a wheel while you fiddle with the transmission.


•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-
Joined: Apr 2011
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Yea folks, thanks for the help. It did end up being the shift level. The end had worn down to the point of getting caught between two gears. I had end welded to build it up, then shaped on the grinder - it now works great. Bob

I sure appreciate this forum - and your helping a rookie when it comes to trannys..

Joined: Feb 2004
Posts: 29,868
H
Kettle Custodian (pot stirrer)
Kettle Custodian (pot stirrer)
H Offline
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I hope you also re-tempered the end of the shift lever after welding and reshaping it. If you left it soft, it's going to be a short-life fix. That stub end of the shifter is harder than woodpecker lips from the factory!
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
Joined: May 2005
Posts: 8,878
G
.
.
G Offline
Joined: May 2005
Posts: 8,878
Used in reasonable shape should be easy enough to find.
Or available new.
https://www.novak-adapt.com/catalog/transmission/transmission-parts/sm420-parts/


•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-

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