C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

1968 Shifter Mount

Thread Tools
 
Search this Thread
 
Old Feb 8, 2018 | 08:01 PM
  #1  
Duffeball's Avatar
Duffeball
Thread Starter
Pro
15 Year Member
 
Joined: Jan 2009
Posts: 502
Likes: 37
From: Omaha Nebraska
Default 1968 Shifter Mount

I'm working on the transmission for my car. Was originally an Auto but I'm converting to an M-20.

I have the z bar bracket in place as well as transmission mount tabs on the crossmember. I neglected to get measurements for the shift mount. Apparently there's 2 holes in the back side of the crossmember which look pretty important.

Can someone measure their crossmember and help me locate a position to drill holes in mine?
Reply
Old Feb 8, 2018 | 09:18 PM
  #2  
Rescue Rogers's Avatar
Rescue Rogers
Is my vette stock?? HAHA
Supporting Lifetime Gold
Veteran: Navy
10 Year Member
Community Builder
Loved
 
Joined: Oct 2015
Posts: 20,108
Likes: 9,236
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Default

I can this week end if someone else doesnt get it sooner. My engine and trans is out at the moment so I can get a good picture too
Reply
Old Feb 8, 2018 | 09:20 PM
  #3  
Duffeball's Avatar
Duffeball
Thread Starter
Pro
15 Year Member
 
Joined: Jan 2009
Posts: 502
Likes: 37
From: Omaha Nebraska
Default Help

Excellent I appreciate it!
Reply
Old Feb 9, 2018 | 07:16 AM
  #4  
Alan 71's Avatar
Alan 71
Team Owner
15 Year Member
Active Streak: 120 Days
Community Influencer
Top Answer: 5
 
Joined: Sep 2006
Posts: 31,167
Likes: 4,244
From: Westminster Maryland
Default

Hi D,
Is the 68 shifter mount the same as 69+ mounts?
Isn't the position of the rear 2 bolts for the shifter bracket really determined by the location of the front 2 bolts on the bracket which is determined by those bolts connection through the rear transmission mount bracket?
Regards,
Alan

The brackets in place.



Last edited by Alan 71; Feb 9, 2018 at 07:59 AM.
Reply
Old Feb 9, 2018 | 11:06 AM
  #5  
Duffeball's Avatar
Duffeball
Thread Starter
Pro
15 Year Member
 
Joined: Jan 2009
Posts: 502
Likes: 37
From: Omaha Nebraska
Default Location

Originally Posted by Alan 71
Hi D,
Is the 68 shifter mount the same as 69+ mounts?
Isn't the position of the rear 2 bolts for the shifter bracket really determined by the location of the front 2 bolts on the bracket which is determined by those bolts connection through the rear transmission mount bracket?
Regards,
Alan

The brackets in place.


That's definitely part of the equation. Maybe even all of it. My shifter mount will sit on those Flush and get me a relative location in the back but I can still pivot it up and down to some degree. I just don't want to have anything too far out of alignment.
Reply
Old Feb 9, 2018 | 02:42 PM
  #6  
Alan 71's Avatar
Alan 71
Team Owner
15 Year Member
Active Streak: 120 Days
Community Influencer
Top Answer: 5
 
Joined: Sep 2006
Posts: 31,167
Likes: 4,244
From: Westminster Maryland
Default

Hi,
If you install the 2 forward fasteners which go through transmission mount bracket into the shifter mount and tighten them (first photo) won't that give you the location for the rear 2 fasteners (second photo)?
Regards,
Alan

Last edited by Alan 71; Feb 9, 2018 at 02:45 PM.
Reply
Old Feb 9, 2018 | 03:05 PM
  #7  
East Bay 68's Avatar
East Bay 68
Advanced
 
Joined: Nov 2015
Posts: 78
Likes: 16
From: Concord California
Default

Duffleball, I have a 68 four speed with the body off and shifter & trans in. I should be able to get those dimensions later today unless some one beats me to it. It’s the two bolts on the back of the crossmember right?
Reply
Old Feb 9, 2018 | 05:03 PM
  #8  
Duffeball's Avatar
Duffeball
Thread Starter
Pro
15 Year Member
 
Joined: Jan 2009
Posts: 502
Likes: 37
From: Omaha Nebraska
Default Yep

Originally Posted by East Bay 68
Duffleball, I have a 68 four speed with the body off and shifter & trans in. I should be able to get those dimensions later today unless some one beats me to it. It’s the two bolts on the back of the crossmember right?
Yes. The ones in the back. I'll also try to pin it down with hardware and just see if that gets me where I need to be. But more information the better.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-1

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-2

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-3

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-4

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-5

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-6

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-7

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-8

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-9

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
Old Feb 9, 2018 | 06:00 PM
  #9  
Alan 71's Avatar
Alan 71
Team Owner
15 Year Member
Active Streak: 120 Days
Community Influencer
Top Answer: 5
 
Joined: Sep 2006
Posts: 31,167
Likes: 4,244
From: Westminster Maryland
Default

Hi D,
In thinking about this I remembered some posts by folks having a problem occasionally with the shifter lever hitting the front of the opening in the console trim plate when shifting into reverse, first, and third.
The service manual indicates one of the remedies for this is to 'shim' the shifter mounting bracket bolts to 'tilt' the bracket.
Are you in a position that you check that fit before you get too far along with the shifter mounting bracket fasteners?
Might be good to do if you can.
Regards,
Alan
Reply
Old Feb 9, 2018 | 06:12 PM
  #10  
Duffeball's Avatar
Duffeball
Thread Starter
Pro
15 Year Member
 
Joined: Jan 2009
Posts: 502
Likes: 37
From: Omaha Nebraska
Default Shifter

I wouldn't be in the position to check that just yet. The body still off the frame. I figured that was the easiest situation to deal with the mounting bracket in the first place. But it does give me another thing to think about. I remember I had a 73 that had that exact issue.
Reply
Old Feb 10, 2018 | 03:58 PM
  #11  
East Bay 68's Avatar
East Bay 68
Advanced
 
Joined: Nov 2015
Posts: 78
Likes: 16
From: Concord California
Default

Hey Duffleball, so i got some pics with a ruler. See if this helps. In the second one I put the ruler up against the left exhaust hole in the crossmember. Sorry the lighting is not the best my stupid flash on my phone doesn't work...
Attached Images   
Reply
Old Feb 11, 2018 | 05:55 AM
  #12  
theandies's Avatar
theandies
Team Owner
20 Year Member
Veteran: Air Force
Community Favorite
Top Answer: 1
 
Joined: Jun 2001
Posts: 23,360
Likes: 1,059
From: Virginia USA
Default

Originally Posted by Duffeball
I wouldn't be in the position to check that just yet. The body still off the frame. I figured that was the easiest situation to deal with the mounting bracket in the first place. But it does give me another thing to think about. I remember I had a 73 that had that exact issue.
You can eliminate the shifter hitting the cutout by setting it up for short throw. That's if your transmission has two holes (instead of one) where the shifter rod linkage hooks up to the side of the trans.

The short throw position are the lower holes shown below. Make sure if you do it to use the shifter alignment tool




Last edited by theandies; Feb 11, 2018 at 05:59 AM.
Reply
Old Feb 11, 2018 | 11:57 AM
  #13  
Rescue Rogers's Avatar
Rescue Rogers
Is my vette stock?? HAHA
Supporting Lifetime Gold
Veteran: Navy
10 Year Member
Community Builder
Loved
 
Joined: Oct 2015
Posts: 20,108
Likes: 9,236
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Default

Heres some measurements from the frame over, I referenced the exhaust cutouts as well so you have a few measurements

the drivers side measurementsare right side up, passenger side to center are upside down



DRIVERS SIDE

drivers side frame All measurements right side up are frome this point





PASSENGER SIDE





If you have the holes in the tongue mont I would bolt the shift mount in, then scribe the holes onto your crossmember, then check measurements. It will be the easiest unless you have 4 arms

Last edited by Rescue Rogers; Feb 11, 2018 at 12:00 PM.
Reply
Old Feb 11, 2018 | 12:38 PM
  #14  
Duffeball's Avatar
Duffeball
Thread Starter
Pro
15 Year Member
 
Joined: Jan 2009
Posts: 502
Likes: 37
From: Omaha Nebraska
Default Thanks

Originally Posted by Rescue Rogers
Heres some measurements from the frame over, I referenced the exhaust cutouts as well so you have a few measurements

the drivers side measurementsare right side up, passenger side to center are upside down



DRIVERS SIDE

drivers side frame All measurements right side up are frome this point





PASSENGER SIDE





If you have the holes in the tongue mont I would bolt the shift mount in, then scribe the holes onto your crossmember, then check measurements. It will be the easiest unless you have 4 arms

Thank you to everybody who got me measurements. Between the two of you with the pictures and all of the good info. To be able to get something pretty well squared up I will report back as I work on it.
Reply

Get notified of new replies

To 1968 Shifter Mount





All times are GMT -4. The time now is 03:16 PM.

story-0
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
story-1
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-2
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-3
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-4
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-5
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-6
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-7
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-8
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-9
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE