Thanks so very much PJO.
Muncie Interlock Cable Length
Thread Starter
Melting Slicks
Joined: Oct 2013
Posts: 2,569
Likes: 126
From: San Diego California
Muncie Interlock Cable Length
I'm confused of what LENGTH the Steering Interlock Cable should be on this '73 SBC.
It's a pre-70s M20 (no TCS switch) that I have to replace the TH400. Just wanna be sure I buy the right length cable, as there are various lengths listed for the same year 4-speed car. If anyone has one loose to measure (or sell
) that's a known fit, please advise me.
It's very much appreciated. Thank you.
steve
It's a pre-70s M20 (no TCS switch) that I have to replace the TH400. Just wanna be sure I buy the right length cable, as there are various lengths listed for the same year 4-speed car. If anyone has one loose to measure (or sell
) that's a known fit, please advise me.It's very much appreciated. Thank you.
steve
Last edited by Cavu2u; Jul 13, 2021 at 04:19 PM.
Team Owner
Joined: Jun 2001
Posts: 23,375
Likes: 1,067
From: Virginia USA
Put indexing tool in shifter
Adjust using AIM instructions This picture shows the interlock or backdrive cable as they call it.
Adjustment to the holes mentioned.
Scan of my original owners manual talking about short throw .
I have it setup this way in my '71 and it's a lot better than stock.
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,029
From: eastern NC
Zip and Wilcox both only show one Steering Column Interlock Cable for the 69-75(76) w/4-spd equipped cars. I believe they call it a 31" cable.
OE GM PART #: 3949074
ZIP - https://www.zip-corvette.com/69-75-w...MaAuUuEALw_wcB
Wilcox - https://willcoxcorvette.com/corvette...eed-69-76-repl
Good luck... GUSTO
OE GM PART #: 3949074
ZIP - https://www.zip-corvette.com/69-75-w...MaAuUuEALw_wcB
Wilcox - https://willcoxcorvette.com/corvette...eed-69-76-repl
Good luck... GUSTO
Burning Brakes
Joined: Sep 2019
Posts: 923
Likes: 155
From: North Port, FL
Set your shifter up to short throw buy adjusting the rods to the holes in the trans levers closer to the pivot point.
Put indexing tool in shifter
Adjust using AIM instructions This picture shows the interlock or backdrive cable as they call it.
Adjustment to the holes mentioned.
Scan of my original owners manual talking about short throw .
I have it setup this way in my '71 and it's a lot better than stock.
Put indexing tool in shifter
Adjust using AIM instructions This picture shows the interlock or backdrive cable as they call it.
Adjustment to the holes mentioned.
Scan of my original owners manual talking about short throw .
I have it setup this way in my '71 and it's a lot better than stock.
Burning Brakes
Joined: Sep 2019
Posts: 923
Likes: 155
From: North Port, FL
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Thread Starter
Melting Slicks
Joined: Oct 2013
Posts: 2,569
Likes: 126
From: San Diego California
Le Mans Master
Joined: Jun 2006
Posts: 6,400
Likes: 1,226
From: Tampa Florida
Zip and Wilcox both only show one Steering Column Interlock Cable for the 69-75(76) w/4-spd equipped cars. I believe they call it a 31" cable.
OE GM PART #: 3949074
ZIP - https://www.zip-corvette.com/69-75-w...MaAuUuEALw_wcB
Wilcox - https://willcoxcorvette.com/corvette...eed-69-76-repl
Good luck... GUSTO
OE GM PART #: 3949074
ZIP - https://www.zip-corvette.com/69-75-w...MaAuUuEALw_wcB
Wilcox - https://willcoxcorvette.com/corvette...eed-69-76-repl
Good luck... GUSTO
Be sure to purchase the correct type with the wrapped steel case, not the black plastic coated.
https://www.zip-corvette.com/69-75-w...ock-cable.html