Transmission gear selector linkage repair
2 posters
Transmission gear selector linkage repair
by zucchi Wed May 04, 2022 1:58 pm
The gear selector linkage in my 1974 Monte Carlo had developed lots of slack over the last 48 years so this past April 23, 2022, I did something about it. This video shows what I did…
Enjoy and let me know if you have any questions.
Enjoy and let me know if you have any questions.
zucchi- G3GM Member
- Street Cred : 2
Re: Transmission gear selector linkage repair
by Limey SE Wed May 04, 2022 10:46 pm
Maybe share the Replacement part numbers I for one have to do this is and Trans is out for Engine Upgrade ??
___________________________________________
1977 Chevelle SE x2
One Mild original
one Wild NON original
Anthony
Limey SE- Management
- Street Cred : 97
Re: Transmission gear selector linkage repair
by zucchi Thu May 05, 2022 8:59 am
Limey SE wrote:Maybe share the Replacement part numbers…
You bet.
From the parts manual on gmpartswiki…
GP 4.040: 488452 – SHAFT, EQUALIZER CONTROL
GP 4.045: 9795470 – LEVER, PARK. LOCK AND RANGE SELECTOR OUTER {although I used 480565}
The swivel and it's components can be purchased together but their parts are…
GP 4.037: 1385607 – SWIVEL, CONTROL ROD LOWER
GP 4.037: 3989434 – WASHER
GP 4.037: 3989433 – SCREW
The spring, washer, bushing, clip kit includes…
10040797 – CLIP
492346 – WASHER
10236109 – SPRING
1377083 – BUSHING
The grommet was
GP 4.037: 1394293 – GROMMET ASSY
I got these parts from different sellers on evilBay
zucchi- G3GM Member
- Street Cred : 2
Re: Transmission gear selector linkage repair
by zucchi Mon Oct 03, 2022 1:10 pm
This is a follow-up to my original post.
After I replaced the worn transmission shift linkage parts, much of the loosy-goosy slack was taken up but there was still some noticeable and annoying looseness as can be seen in the original video at time 24:21 - 24:45. I suspected there was an issue with the selector and detent spring inside the transmission. I started documenting the repair after I dropped the pan and saw what you'll see in the video. Please note that I hadn't intended to record an "instructional" video so I didn't have a tripod, etc. The camera was hand-held and all the footage is "raw", i.e., unedited.
One thing I didn't mention in the video is when I dropped the pan and inspected everything, the nut on the inside of the transmission that holds the range selector lever (#330136) onto the selector shaft (#470107), didn't seem as tight as it should have been. After replacing the selector lever, when I tightened up the nut, I put the torque wrench on the nut on the outside of the shaft and a box wrench on the nut on the inside so that both nuts would be properly torqued. I would expect this to prevent a repeat of this issue. Furthermore, I'll note to check the torque on those nuts whenever I do transmission service in the future.
As always, I hope this helps those with the same problem
After I replaced the worn transmission shift linkage parts, much of the loosy-goosy slack was taken up but there was still some noticeable and annoying looseness as can be seen in the original video at time 24:21 - 24:45. I suspected there was an issue with the selector and detent spring inside the transmission. I started documenting the repair after I dropped the pan and saw what you'll see in the video. Please note that I hadn't intended to record an "instructional" video so I didn't have a tripod, etc. The camera was hand-held and all the footage is "raw", i.e., unedited.
One thing I didn't mention in the video is when I dropped the pan and inspected everything, the nut on the inside of the transmission that holds the range selector lever (#330136) onto the selector shaft (#470107), didn't seem as tight as it should have been. After replacing the selector lever, when I tightened up the nut, I put the torque wrench on the nut on the outside of the shaft and a box wrench on the nut on the inside so that both nuts would be properly torqued. I would expect this to prevent a repeat of this issue. Furthermore, I'll note to check the torque on those nuts whenever I do transmission service in the future.
As always, I hope this helps those with the same problem
zucchi- G3GM Member
- Street Cred : 2
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