Go Back   The Supercar Registry > General Discussion > L78/L89 specific Forum


Reply
 
Thread Tools Display Modes
  #1  
Old 03-20-2022, 11:02 PM
Mark2002 Mark2002 is offline
Junior Member
 
Join Date: Mar 2022
Location: NJ
Posts: 16
Thanks: 0
Thanked 20 Times in 4 Posts
Default 1969 L78 4:56 gear

Hello, new member here, I've been reading the forum for a while and just joined.
I have a 1969 Chevelle L78 4 speed originally Butternut yellow. Black top, black interior.
My build sheet has a KM code which matches the stamp on the rear for a 4.56 gear. All the sources I can find on the web point to only one 1969 Chevelle ordered with this rear end ratio. Does anyone else out there have a documented factory 4.56 rear in their car?
Thanks

Last edited by Mark2002; 03-21-2022 at 01:05 PM.
Reply With Quote
The Following 9 Users Say Thank You to Mark2002 For This Useful Post:
big gear head (03-21-2022), combinefixer (03-21-2022), cruiserofland (03-21-2022), HuggerSS (03-20-2022), olredalert (03-21-2022), PeteLeathersac (03-20-2022), ruralrte66 (03-21-2022), SS427 (03-21-2022), YenkoYS-199Stinger (03-21-2022)
Attachments - The Supercar Registry IMG_4712.jpg IMG_4710.jpg IMG_4709.jpg IMG_4705.jpg
O Garage vBulletin Plugins by Drive Thru Online, Inc.
Click here to view all the pictures posted in this thread...
  #2  
Old 03-20-2022, 11:17 PM
TimG TimG is offline
Yenko Contributing Member
 
Join Date: Sep 2001
Location: Austin, TX
Posts: 4,120
Thanks: 1
Thanked 1,835 Times in 746 Posts
Default

Wow, I’m no Chevelle expert, but I’m anxious to hear about this question.
Reply With Quote
  #3  
Old 03-20-2022, 11:34 PM
PeteLeathersac's Avatar
PeteLeathersac PeteLeathersac is offline
Yenko Contributing Member
 
Join Date: Jul 2005
Location: O' Canada
Posts: 12,023
Thanks: 14,656
Thanked 4,183 Times in 1,966 Posts
Default

'

There was a Black '69 Hardtop factory 4:56 car we looked a here a few years back.
Factory 4:56 is special as some info indicates Copo 9511 was necessary for '69 model cars.
Looking forward to seeing/hearing more about your car, welcome aboard!

~ Pete

.
__________________
I like real cars best...especially the REAL real ones!
Reply With Quote
  #4  
Old 03-20-2022, 11:41 PM
Mr70's Avatar
Mr70 Mr70 is offline
Yenko Contributing Member
 
Join Date: Jan 2001
Location: Illinois
Posts: 20,408
Thanks: 70
Thanked 2,489 Times in 1,139 Posts
Default

Jerry B. Garnet Red '69 L-78 Chevelle has a factory 4.56 rear....not a COPO.
Reply With Quote
  #5  
Old 03-21-2022, 12:51 AM
1967 4K's Avatar
1967 4K 1967 4K is online now
Yenko Contributing Member
 
Join Date: Jul 2012
Location: Ky.
Posts: 701
Thanks: 3,635
Thanked 441 Times in 170 Posts
Default Jerry B.

Yep and Jerry has the build sheet on his car.
__________________
Richard

1967 Camaro SS 396/375 4K
2002 Camaro 35 Anniversay Z4C-WU8
Reply With Quote
  #6  
Old 03-21-2022, 03:05 AM
combinefixer combinefixer is online now
Yenko Contributing Member
 
Join Date: Dec 2017
Location: SW MO
Posts: 59
Thanks: 53
Thanked 30 Times in 12 Posts
Default

Quote:
Originally Posted by Mark2002 View Post
Hello, new member here, I've been reading the forum for a while and just joined.
I have a 1969 Chevelle L78 4 speed originally Butternut yellow. Black top, black interior.
My build sheet has a KM code which matches the stamp on the rear for a 4.56 gear. All the sources I can find on the web point to only one 1969 Chevelle ordered with this rear end ratio. Does anyone else out there have a documented factory 4:56 rear in their car?
Thanks
Which transmission does this beast have?
__________________
134379 L78 M22 in 61 61
Reply With Quote
  #7  
Old 03-21-2022, 12:45 PM
Mark2002 Mark2002 is offline
Junior Member
 
Join Date: Mar 2022
Location: NJ
Posts: 16
Thanks: 0
Thanked 20 Times in 4 Posts
Default

The build sheet has a XF code crossed out and XD written in. Seems strange that they would replace an M21 with another M21 code. A friend suggested to me that perhaps it was meant to be replaced with a M22. The transmission is in the car, so I haven't been able to verify the shaft or the angle on the gearing to confirm it as an M21 or M22.
I have not driven it yet which would make it much easier to tell which trans.
Unfortunately, it no longer has the original motor. The sheet metal appears to be all original and in great shape. Surprisingly for a NJ car, it has original quarters rockers and fenders. Floors and trunk are also very good. I'll post some pictures soon.
Reply With Quote
The Following 5 Users Say Thank You to Mark2002 For This Useful Post:
big gear head (03-21-2022), chevyman0429 (03-21-2022), combinefixer (03-22-2022), cruiserofland (03-21-2022), olredalert (03-21-2022)
  #8  
Old 03-21-2022, 03:02 PM
tunes's Avatar
tunes tunes is offline
Senior Member
 
Join Date: Jun 2014
Location: SW Missouri
Posts: 196
Thanks: 90
Thanked 80 Times in 40 Posts
Default

Welcome to this site and I'll look forward to seeing pictures and hearing more about your L78.
__________________
Robert
_______________
1969 Chevelle SS396 L78 M21 4.10
2023 Stingray Coupe Z51
Reply With Quote
  #9  
Old 03-21-2022, 04:38 PM
mockingbird812's Avatar
mockingbird812 mockingbird812 is offline
Yenko Contributing Member
 
Join Date: Jun 2004
Location: Dayton
Posts: 14,391
Thanks: 897
Thanked 789 Times in 474 Posts
Default

Welcome Mark and DO TELL! Lots of pictures too!
__________________
Sam...

Reply With Quote
  #10  
Old 03-23-2022, 03:10 AM
enio45 enio45 is offline
Yenko Contributing Member
 
Join Date: Oct 2002
Location: Gilbert, AZ
Posts: 3,910
Thanks: 310
Thanked 277 Times in 169 Posts
Default

Sammy and his pictures :-)
__________________
Eddie M
MBTMF

68 COPO Camaro 9737 non-converted YENKO
69 YENKO SC Camaro, Hugger Orange - born with engine!
Reply With Quote
The Following User Says Thank You to enio45 For This Useful Post:
mockingbird812 (03-23-2022)
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 03:38 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.