French lock

Reply Subscribe

Thread Tools

Search this Thread

Apr 20, 2020 | 09:22 AM

rcauchon

Thread Starter

Intermediate

Joined: Jun 2006

Posts: 25

Likes: 3

From: St. Constant Quebec

C3 74 Corvette French lock

Hi,

I hope someone can help me , I took this part off my 1974 Corvette 350 but I don't remember where it came from , maybe transmission not sure.

it's 3 1/4 from center to center of the holes, 4 1/2 from end to end.

Can you guys help out please.

Last edited by rcauchon; Apr 20, 2020 at 09:45 AM. Reason: Title

Apr 20, 2020 | 11:27 AM

7T1vette

Team Owner

Joined: Jan 2006

Posts: 37,637

Likes: 3,116

From: Crossville TN

Exhaust manifold? The only [stock] French locks I can think of are the exhaust manifolds and the half-shaft U-joints.

Apr 20, 2020 | 01:11 PM

barkingrats

1967 Pedal Car Champion

Joined: Mar 2020

Posts: 9,048

Likes: 4,192

From: US-PNW

Quote:

Originally Posted by 7T1vette

Exhaust manifold? The only [stock] French locks I can think of are the exhaust manifolds and the half-shaft U-joints.

There's also a French lock on M40 transmissions at the exhaust pipe hanger/clamp at the frame crossmember.

Apr 20, 2020 | 01:51 PM

Mooser

Race Director

Joined: Apr 2011

Posts: 11,183

Likes: 3,335

From: North of Toronto - Ontario

Quote:

Originally Posted by 67:72

There's also a French lock on M40 transmissions at the exhaust pipe hanger/clamp at the frame crossmember.

I don't think I've ever actually seen one

Last edited by Mooser; Apr 20, 2020 at 01:54 PM.

Apr 20, 2020 | 05:33 PM

barkingrats

1967 Pedal Car Champion

Joined: Mar 2020

Posts: 9,048

Likes: 4,192

From: US-PNW

Quote:

Originally Posted by Mooser

I don't think I've ever actually seen one

Yup - there's one there, well, not on my car... At the moment, I've got mine in a baggie while I wait for the TH-400 to come back from the shop.

Apr 21, 2020 | 09:06 AM

rcauchon

Thread Starter

Intermediate

Joined: Jun 2006

Posts: 25

Likes: 3

From: St. Constant Quebec

Quote:

Originally Posted by 67:72

There's also a French lock on M40 transmissions at the exhaust pipe hanger/clamp at the frame crossmember.

Yes, that's exactly where it came from. I had put in some new 3" pipes and had trouble with the hanger/clamp so I didn't put it back..

Apr 21, 2020 | 09:09 AM

rcauchon

Thread Starter

Intermediate

Joined: Jun 2006

Posts: 25

Likes: 3

From: St. Constant Quebec

Thanks a bunch, that was it. It was left over from a header/pipe replacement.

Apr 21, 2020 | 09:47 AM

KenSny

Melting Slicks

Joined: Apr 2001

Posts: 3,399

Likes: 278

From: Olmsted Falls, Ohio

Most corner shop mechanics today have never seen a french-lock, so they toss them away.

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Michael S. Palmer

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Joe Kucinski

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Joe Kucinski

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

Verdad Gallardo

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

Joe Kucinski

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

Verdad Gallardo

Top 10 Corvettes Coming to Mecum Indy 2026!

Brett Foote

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

Michael S. Palmer

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

Joe Kucinski

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

Michael S. Palmer

Apr 21, 2020 | 01:42 PM

C3_DH

Racer

Joined: Jan 2019

Posts: 360

Likes: 147

Leftover parts always scare ya, right? LOL

Apr 22, 2020 | 11:13 AM

#10

TimAT

Le Mans Master

Joined: Oct 2006

Posts: 7,123

Likes: 433

From: Gladstone MO

C3 of Year Finalist (appearance mods) 2019

Left over parts/bolts/nuts go in a baggie in the storage compartment. Makes for a nice occasional rattle. (*ref rule 843.62)

Apr 23, 2020 | 02:08 AM

#11

Giddy-up Go

Le Mans Master

Joined: Aug 2010

Posts: 8,513

Likes: 501

From: Bussey, IA

i have them in my trailing arms

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last

Forum Jump