CorvetteForum - Chevrolet Corvette Forum Discussion

C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1986 Base transmission options

Thread Tools
 
Search this Thread
 
Old Apr 12, 2025 | 01:32 PM
Share
  #1  
ROCKINrONNIE's Avatar
ROCKINrONNIE
Thread Starter
4th Gear
 
Joined: Apr 2025
Posts: 4
Likes: 0
Default 1986 Base transmission options
I want to get a new high performance trans. Where can i find one that will work with my car?
Reply
0
Old Apr 12, 2025 | 01:34 PM
Share
  #2  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default
Originally Posted by ROCKINrONNIE
I want to get a new high performance trans. Where can i find one that will work with my car?
You're looking for an A/T or a manual trans? Which is it now?
Reply
0
Old Apr 12, 2025 | 01:56 PM
Share
  #3  
ROCKINrONNIE's Avatar
ROCKINrONNIE
Thread Starter
4th Gear
 
Joined: Apr 2025
Posts: 4
Likes: 0
Default
now is manual 6 speed i would like to keep it manual
Reply
0
Old Apr 12, 2025 | 01:58 PM
Share
  #4  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default
Originally Posted by ROCKINrONNIE
now is manual 6 speed i would like to keep it manual
IF A 6spd already it would have been modified! What model 6spd is it?
Reply
0
Old Apr 12, 2025 | 02:02 PM
Share
  #5  
ROCKINrONNIE's Avatar
ROCKINrONNIE
Thread Starter
4th Gear
 
Joined: Apr 2025
Posts: 4
Likes: 0
Default
I dont know I just bought it and blew 6th gear. Ill get under it and take a look and get back to you.
Reply
0
Old Apr 12, 2025 | 03:07 PM
Share
  #6  
skorpion317's Avatar
skorpion317
Instructor
10 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Apr 2012
Posts: 195
Likes: 131
From: NJ
2025 Corvette of the Year Finalist - Modified
2024 C4 of the Year Winner - Modified
Default
'84-'88 manual cars had the Doug Nash 4+3 transmission (4-speed manual with a 3-speed automatic overdrive unit attached to the rear of the transmission). '89-'96 cars had the ZF 6-speed.

If your '86 has a 6-speed, I'm guessing the previous owner probably swapped in the ZF trans, since that's the easiest option. The ZF is a strong transmission, so just get the 6th gear fixed and you should be good to go.
Reply
0
Old Apr 12, 2025 | 05:49 PM
Share
  #7  
ChumpVette's Avatar
ChumpVette
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2010
Posts: 4,564
Likes: 1,676
Default
Originally Posted by skorpion317
'84-'88 manual cars had the Doug Nash 4+3 transmission (4-speed manual with a 3-speed automatic overdrive unit attached to the rear of the transmission). '89-'96 cars had the ZF 6-speed.

If your '86 has a 6-speed, I'm guessing the previous owner probably swapped in the ZF trans, since that's the easiest option. The ZF is a strong transmission, so just get the 6th gear fixed and you should be good to go.
Richmond had a popular bolt in for the 4+3. That trans was geared to work better with the early D44 3:07 gear sets.
Reply
1
Old Apr 12, 2025 | 05:55 PM
Share
  #8  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default
Originally Posted by ChumpVette
Richmond had a popular bolt in for the 4+3. That trans was geared to work better with the early D44 3:07 gear sets.
If the M6 is one of these it would be probably a somewhat inexpensive 'repair'..
Reply
0

Get notified of new replies

To 1986 Base transmission options

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
Back to Subforum
C4 Tech/Performance
View Next Unread
ZF Tail Housing Bushing Dilemma




Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 12:00 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