C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

5sp Tremec and Steering Column Lock

Thread Tools
 
Search this Thread
 
Old Jan 2, 2011 | 11:20 AM
  #1  
GasketDude's Avatar
GasketDude
Thread Starter
Racer
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Apr 2004
Posts: 401
Likes: 0
From: IL
Default 5sp Tremec and Steering Column Lock

Question goes out to those who've installed a 5sp Tremec/TKO trans and still have steering lock when parked. Since the '69-up incorporate a cable from trans to steering column to lock the steering wheel..how did you keep this feature with the Tremec/TKO? With the standard 4sp, the cable attaches to the shifter linkage but now that has all changed with the shift linkage internal to the 5sp. Just currious how this works since also affects locking the key switch as well.

I don't have my install manual handy and I don't see any mention of it online. How does this feature still work after the install?

GD
Reply
Old Jan 2, 2011 | 11:26 AM
  #2  
Gordonm's Avatar
Gordonm
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Default

This no longer becomes a working piece. Just make sure the arm lock stays in the up position and you will not have a problem. With the shifter on the Tremec there is really no provision for the cable lock. I have done several of these and just make the steering column lock not functional. This way you can leave it in any gear and still remove the key.
Reply
Old Jan 2, 2011 | 02:37 PM
  #3  
Jim Shea's Avatar
Jim Shea
Le Mans Master
Supporting Lifetime Gold
15 Year Member
 
Joined: Jul 2000
Posts: 6,001
Likes: 113
From: Saginaw Michigan
Default

With the lever on the lower end of the steering column in the full UP position (about 1 o'clock if you could see it from the driver seat) you will be able to shut off your engine and lock the steering wheel even thought your car is still moving forward. The system was called the Steering Column/Transmission Shift Interlock. It was a safety feature that GM built into your Corvette.

You will need to secure the lower lever in the full UP position. If the lever moves down you will find that you will still be able to shut off your engine but you will not be able to remove your ignition key.

With the interlock system disabled, you will not be able to lock your shifter, but your steering wheel will be locked when you remove your ignition key.

A lot of owners have removed the Interlock System when they installed headers and/or new transmissions.

Jim
Reply
Old Aug 28, 2014 | 11:05 AM
  #4  
7T3C3TTZ07's Avatar
7T3C3TTZ07
Racer
15 Year Member
 
Joined: Mar 2005
Posts: 294
Likes: 1
From: Racine Wisconsin
Default

I know this is an old thread, but I'll post my comments here rather than start a new one:

Originally Posted by Jim Shea
...The system was called the Steering Column/Transmission Shift Interlock. It was a safety feature that GM built into your Corvette. Jim
I installed the TKO several years ago. I like the safety feature that Jim describes. My intent is to preserve the feature of not allowing the steering wheel to lock unless the car is stopped. This car is eventually going to be driven my my daughter and I'm trying to think of 'what might go wrong'. I have thought about how to restore this feature with the TKO installed. Short of designing and fabricating something for the TKO, the only ideas that I have come up with are: 1) To have the cabe somehow linked to the parking brake handle. Activating the parking brake handle (presumably the car is not moving when this is done) would push the steering column interlock up so the key can be removed. 2) Have a spring-loaded manual handle inside to do the same as the parking brake (my current favorite). My $0.002. Regards, Ken
Reply
Old Apr 25, 2024 | 11:43 AM
  #5  
check6's Avatar
check6
1st Gear
 
Joined: May 2014
Posts: 1
Likes: 0
Default

Originally Posted by Gordonm
This no longer becomes a working piece. Just make sure the arm lock stays in the up position and you will not have a problem. With the shifter on the Tremec there is really no provision for the cable lock. I have done several of these and just make the steering column lock not functional. This way you can leave it in any gear and still remove the key.
Thank you Gordon, I recently installed a 5-speed trans in my 69 vette and I wish that I'd read your comment before I had the ignition lock replaced for not moving to the locked position. But....that's life. Thanks.
Reply
Old Apr 25, 2024 | 06:01 PM
  #6  
60 SHARK's Avatar
60 SHARK
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 3
 
Joined: Aug 2016
Posts: 2,347
Likes: 1,180
From: CLEVELAND STUCK IN OHIO
2024 C3 of the Year Finalist- Modified
Default

So how did you ,check6, overcome the 'non locking ignition? Did you position the arm permanently in the lock position?
Just curious 🤔
Reply

Get notified of new replies

To 5sp Tremec and Steering Column Lock





All times are GMT -4. The time now is 05:27 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE