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4-speed shifter alignment (1/19)
 12/3/18 6:58pm
BillHanna
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Cana, VA - USA

Vette(s):
1975 Stingray


Joined: 7/3/2016
Posts: 168

I rebuilt the 4-speed shifter in my '75 using one of the rebuild kits.  It tightened it up nicely, and fixed the problem with it catching going into 2nd gear (the reverse lockout rod was worn way down).  My question is that there does not appear to be an alignment hole to set all the pawls to neutral. My concern is that when I get the transmission back in it will be a pain working in the confined space under the car to get all the shift rods set correctly.

What it the method to align the shift rods?

BTW -- I had a heck of a time getting the shifter out of the car even with the transmission out.  I read about one person who took it out with the transmission in place -- I can't imagine doing that!



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Re: 4-speed shifter alignment (2/19)
 12/3/18 10:29pm
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.


Joined: 7/9/2003
Posts: 565

It shows you how in the factory service manual. Assuming your shifter is the same as in my 73, it takes a piece of flat thin stock that they'd used to align the shifters in the neutral position. Much more difficult than with the piece of drill rod on the previous versions. Especially if it's in the car because then you have to bend the piece of stock into a curve in order to get it up into the tunnel. If you don't have a FSM, I can post a picture of mine if I can find it. Or maybe a picture of the FSM page when I get home.

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1973 L-82 4 spd

Re: 4-speed shifter alignment (3/19)
 12/3/18 10:46pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
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The factory shifter could have two different alignment "slots". Depending on which one you have, it requires a pin, or square stock "gauge". Either way, you insert the pin or gauge into the slot/hole, lining the three levers up first, then adjust the linkages to fit the levers. If you did NOT loosen, or move any of the linkage adjustments before taking the shifter off, it should be dang close to start with.

This pic shows the two different alignment slot/holes.(A & B) The Service manual, if you have one, also has the adjustment procedure.




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Joel Adams
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Re: 4-speed shifter alignment (4/19)
 12/4/18 12:51am
BillHanna
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Cana, VA - USA

Vette(s):
1975 Stingray


Joined: 7/3/2016
Posts: 168

I do have a FSM -- I'll check it in the morning.
Thanks!



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Re: 4-speed shifter alignment (5/19)
 12/5/18 12:55am
F4Gary
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Grapevine, TX - USA

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1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 966

I got my shifter out with the engine and transmission in place.  Wasn't easy and I cussed....a lot.

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Re: 4-speed shifter alignment (6/19)
 12/6/18 4:25pm
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.


Joined: 7/9/2003
Posts: 565

Here's a picture of the alignment tool. The narrow part that fits in the slots is 5/8" and the mat'l thickness is 0.015".


(large image modified to link-aapple)




|UPDATED|12/6/2018 1:25:07 PM (AZT)|/UPDATED|


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1973 L-82 4 spd

Re: 4-speed shifter alignment (7/19)
 12/6/18 10:14am
BillHanna
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Cana, VA - USA

Vette(s):
1975 Stingray


Joined: 7/3/2016
Posts: 168

Thanks.  Once I knew where the slot was, I made a tool to fit.  It'll be a few weeks before I get the engine & transmission together and be ready to install everything again.

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Re: 4-speed shifter alignment (8/19)
 12/6/18 4:21pm
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.


Joined: 7/9/2003
Posts: 565

Just curious to know if the one I pictured would fit your shifter. I couldn't remember if they switched transmissions in 75 or not.

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1973 L-82 4 spd

Re: 4-speed shifter alignment (9/19)
 12/6/18 4:27pm
BillHanna
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Cana, VA - USA

Vette(s):
1975 Stingray


Joined: 7/3/2016
Posts: 168

73shark said: Just curious to know if the one I pictured would fit your shifter. I couldn't remember if they switched transmissions in 75 or not.

Yes, that looks correct.  I made mine straight (without the cutout), but it seems to fit fine.

I assume there will be room enough to pull it out once everything is installed. . .




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Re: 4-speed shifter alignment (10/19)
 12/6/18 8:37pm
73shark
Standard Member
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.


Joined: 7/9/2003
Posts: 565

I think the cut out was just to ensure that you got it inserted all the way to pick up all of the shifters. Are you planning on adjusting them before you put get back in the vehicle?

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1973 L-82 4 spd