The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-26-2020, 06:25 PM   #1
lks dcvn
Registered User
 
lks dcvn's Avatar
 
Join Date: Jan 2007
Location: Columbus, Ohio
Posts: 4,348
How to: Fix PRNDL Gear Indicator Marker Auto Column

So after a quick search on the forum - I found plenty of posts of what to do, but very few pix of what needs to be done. Putting this out there for the next person who is looking to do this. Be sure to chock your wheels before doing this work to prevent injury or damage to your truck.

As many have said - before you make any adjustments under the hood - check the travel (toward you/away from you) of the gear selector arm as these can bind in the column when the old lubricant dries/hardens. You should be able to pull it toward you and it should spring back. To remediate a sticking column - find your favorite spray lubricant and pull back on the gear selector and generously spray into the hole in front of and behind the gear selector arm. Your goal here to loosen up any debris preventing gear arm travel. Be sure to have paper towels/rags handy to catch any spray lubricant before it hits your carpet.

If this doesn't fix your issue - further work is needed.

Below is a picture of the issue(s) -

Inside the truck - Park needle is way off - to the left of the word 'park' on the indicator.
Under the hood - this is where adjustments occur (red box)

*Note in the 2nd picture that the arm is able to travel past the detent for the park setting (yellow box) - it should be on top of that metal arm behind it - not in front of it.
Attached Images
  
lks dcvn is offline   Reply With Quote
Old 09-26-2020, 06:26 PM   #2
lks dcvn
Registered User
 
lks dcvn's Avatar
 
Join Date: Jan 2007
Location: Columbus, Ohio
Posts: 4,348
Re: How to: Fix PRNDL Gear Indicator Marker Auto Column

First put the truck in park - using the column.

Once in Park - go under the hood and loosen the nut on the alignment arm - red box below. Remove all items and note the order them came off.

The arm that connects to the trans will now be loose.

Go into the truck and using the gear indicator - line up the arm with the center of the 'Park' - confirm it is resting on the detent arm under the hood.
Attached Images
    

Last edited by lks dcvn; 09-26-2020 at 07:03 PM.
lks dcvn is offline   Reply With Quote
Old 09-26-2020, 06:27 PM   #3
lks dcvn
Registered User
 
lks dcvn's Avatar
 
Join Date: Jan 2007
Location: Columbus, Ohio
Posts: 4,348
Re: How to: Fix PRNDL Gear Indicator Marker Auto Column

With the gear indicator lined up on the column - return under the hood and bolt the alignment parts to the trans arm being careful not the move the arm location (still on Park inside the truck).

Tighten up the bolt on the arm - red box - and then go into the truck and confirm that you can move the arm into each gear without binding/issue.

Confirm that your NSS switch allows the truck to start when the indicator is in Park and Neutral and that your reverse lights illuminate when in Reverse.

Some have noted that the factory used the Neutral setting as the point to align the arm to as it is the center sweep of the gear options for alignment.

I was able to do this process in my driveway in about 10-15 mins. Now I can actually tell what gear I am in.

Enjoy!
Attached Images
  

Last edited by lks dcvn; 09-26-2020 at 07:09 PM.
lks dcvn is offline   Reply With Quote
Old 09-26-2020, 11:21 PM   #4
Stocker
20' Daredevil (Ret)
 
Stocker's Avatar
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,722
Re: How to: Fix PRNDL Gear Indicator Marker Auto Column

Great info, instructions, & pics -- thanks for posting!
__________________
- Mike -

1972 K20 LWB 350/350/205

RIP El Jay
Stocker is online now   Reply With Quote
Old 09-27-2020, 02:14 PM   #5
35boulder
Registered User
 
35boulder's Avatar
 
Join Date: Oct 2015
Location: Dallas Texas
Posts: 1,383
Re: How to: Fix PRNDL Gear Indicator Marker Auto Column

Agree w Stocker. Thanks for posting.
35boulder is offline   Reply With Quote
Old 09-28-2020, 02:43 PM   #6
custom10nut
Registered User
 
custom10nut's Avatar
 
Join Date: Apr 2015
Location: East Tn (In the heart of the Smoky Mtns)
Posts: 1,887
Re: How to: Fix PRNDL Gear Indicator Marker Auto Column

Subbed for the information.
custom10nut is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:24 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com