C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Ouch..M21 needs a complete rebuild.

Thread Tools
 
Search this Thread
 
Old Mar 12, 2009 | 10:41 PM
  #1  
Budman68's Avatar
Budman68
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
Default Ouch..M21 needs a complete rebuild.

Saw the inside of my M21 today. One broken and cracked tooth on the cluster and first gear was trashed. Does $450 to $500 sound about right for new guts, bearings, and seals? Now you see why I didn't want to buy a new flyweel?

They also said they are doing something else, I think they called it sleeving. Not sure if I heard the term right. I wish Mike had time to do it, but I think he's booked for the rest of the year.
Reply
Old Mar 13, 2009 | 09:22 AM
  #2  
427Hotrod's Avatar
427Hotrod
Race Director
25 Year Member
Liked
Loved
Top Answer: 5
 
Joined: Jan 2000
Posts: 13,017
Likes: 2,261
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Default

Probably not bad price. They are probably sleeving the case where the countershaft goes in. They get oblong and leak quite often.

TShort has one for sale I think...might ask him.


JIM
Reply
Old Mar 13, 2009 | 09:58 AM
  #3  
ED69ray's Avatar
ED69ray
Pro
 
Joined: Dec 2008
Posts: 531
Likes: 0
From: Frisco TX
Default

give Jon a call - he's about an hour south of Dallas in Whitney.

http://www.kajunjon.com/

Super guy and does nice work. I just bought a rebuilt M-20 from him to replace my M-21. He has a nice shop and stocks a lot of parts incl clutches, spindles, yokes..... ect.

He had a couple of reworked M-21 and M-22's for sale as well.

Good Luck, Ed
Reply
Old Mar 13, 2009 | 10:11 AM
  #4  
Budman68's Avatar
Budman68
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
Default

Originally Posted by 427Hotrod
Probably not bad price. They are probably sleeving the case where the countershaft goes in. They get oblong and leak quite often.

TShort has one for sale I think...might ask him.


JIM
The famous reverse burnout transmission. I send him a note.
Reply
Old Mar 13, 2009 | 10:18 AM
  #5  
Budman68's Avatar
Budman68
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
Default

Originally Posted by ED69ray
give Jon a call - he's about an hour south of Dallas in Whitney.

http://www.kajunjon.com/

Super guy and does nice work. I just bought a rebuilt M-20 from him to replace my M-21. He has a nice shop and stocks a lot of parts incl clutches, spindles, yokes..... ect.

He had a couple of reworked M-21 and M-22's for sale as well.

Good Luck, Ed
Ed,
Looking at his site, he is $300 to inspect and $170 to rebuild plus parts.

Add the gear and the cluster would add another $250. Total would be $720 plus tax.

Thanks for the heads up, might need him in the future.
Buddy
Reply
Old Mar 13, 2009 | 03:20 PM
  #6  
427Hotrod's Avatar
427Hotrod
Race Director
25 Year Member
Liked
Loved
Top Answer: 5
 
Joined: Jan 2000
Posts: 13,017
Likes: 2,261
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Default

Now that you mention it...he had one wayback when with broken ears on it...maybe that's when it died?

I think the one he has came out of Tony's BB C-3 when Tony bought Nick's TKO. Travis hasn't driven this one much and Tony never hurt it for sure! He just put Doug's old TKO600 in his.

Man we trade parts around a lot don't we???


JIM
Reply
Old Mar 13, 2009 | 03:53 PM
  #7  
Budman68's Avatar
Budman68
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
Default

Originally Posted by 427Hotrod
Now that you mention it...he had one wayback when with broken ears on it...maybe that's when it died?

I think the one he has came out of Tony's BB C-3 when Tony bought Nick's TKO. Travis hasn't driven this one much and Tony never hurt it for sure! He just put Doug's old TKO600 in his.

Man we trade parts around a lot don't we???


JIM
I spoke to him, its the broken ear version. I'm going to pull the trigger on fixing mine.
Reply
Old Mar 13, 2009 | 08:07 PM
  #8  
427Hotrod's Avatar
427Hotrod
Race Director
25 Year Member
Liked
Loved
Top Answer: 5
 
Joined: Jan 2000
Posts: 13,017
Likes: 2,261
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Default

Hmmn....I thought he had a good one too. Donny just sold his Doug Nash 5 speed to my other buddy Paul. He has a Muncie....want me to see if it's for sale?



JIM
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

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

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo
Old Mar 13, 2009 | 08:30 PM
  #9  
Budman68's Avatar
Budman68
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
Default

Thanks, but I already gave them the thumbs up to proceed. I guess we need to start a loaner or trade pool.
Reply

Get notified of new replies

To Ouch..M21 needs a complete rebuild.





All times are GMT -4. The time now is 04:46 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
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