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

Transmission question

Thread Tools
 
Search this Thread
 
Old Dec 30, 2024 | 07:30 PM
  #1  
Logan931's Avatar
Logan931
Thread Starter
Heel & Toe
 
Joined: Mar 2023
Posts: 24
Likes: 4
Default Transmission question

Is the transmission in a 96 vette the same as a 91, I’m thinking about getting a 96 for parts for my 91
Reply
Old Dec 30, 2024 | 08:42 PM
  #2  
Polo Vert's Avatar
Polo Vert
Pro
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2013
Posts: 697
Likes: 162
From: Huntington WV
Default

Automatic? No, 94-96 are electronically controlled.
Reply
Old Dec 30, 2024 | 10:13 PM
  #3  
Logan931's Avatar
Logan931
Thread Starter
Heel & Toe
 
Joined: Mar 2023
Posts: 24
Likes: 4
Default

Originally Posted by Logan931
Is the transmission in a 96 vette the same as a 91, I’m thinking about getting a 96 for parts for my 91
yes it’s an automatic, mine is slipping I have a new servo coming in to see if that helps but I’m looking at other options i can do if that doesn’t work
Reply
Old Dec 31, 2024 | 08:23 AM
  #4  
arbee's Avatar
arbee
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2003
Posts: 2,677
Likes: 810
From: Saskatoon Sask.
Default

Originally Posted by Logan931
yes it’s an automatic, mine is slipping I have a new servo coming in to see if that helps but I’m looking at other options i can do if that doesn’t work
"mine is slipping" is a very broad statement. Slipping where/when? 1st?, 2nd?, 3rd?, 4th?, rev? All of them? What lead you to order a new servo? A new servo would have squat to do with slipping in 1st, 3rd and reverse. More info is needed.
Reply
Old Dec 31, 2024 | 10:09 AM
  #5  
Logan931's Avatar
Logan931
Thread Starter
Heel & Toe
 
Joined: Mar 2023
Posts: 24
Likes: 4
Default

Originally Posted by arbee
"mine is slipping" is a very broad statement. Slipping where/when? 1st?, 2nd?, 3rd?, 4th?, rev? All of them? What lead you to order a new servo? A new servo would have squat to do with slipping in 1st, 3rd and reverse. More info is needed.
2nd seems to be the worse 1st and reverse are good 2nd if you give it some gas will catch it also doesn’t go into go into 4th speedo doesn’t work either it does have a new speed sensor. Trans is probably going need a rebuild but looking at other options also.
Reply
Old Dec 31, 2024 | 04:03 PM
  #6  
arbee's Avatar
arbee
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2003
Posts: 2,677
Likes: 810
From: Saskatoon Sask.
Default

Originally Posted by Logan931
2nd seems to be the worse 1st and reverse are good 2nd if you give it some gas will catch it also doesn’t go into go into 4th speedo doesn’t work either it does have a new speed sensor. Trans is probably going need a rebuild but looking at other options also.
Could be several different reasons. I shouldn't have to say this but make sure your fluid is up. Have your TV cable adjusted correctly. I would get a gauge on it and check the pressures. Because of the ratio, 1st doesn't need as much pressure as 2-4. When in reverse, the boost valve comes on increasing pressure. Plugged filter, cracked filter neck could cause low pressure. Just a few things to check. If you're unfamiliar with slush boxes, you are kind of at the mercy of transmission shops. All are going to tell you you need a total rebuild. You just got to use your judgement, ask around, read any available reviews and hope you actually get a shop that totally rebuilds it and doesn't just give you a "patch and seal".
Reply
Old Jan 1, 2025 | 12:11 AM
  #7  
Corvette_Dez's Avatar
Corvette_Dez
Drifting
Community Builder
Conversation Starter
Loved
Community Favorite
 
Joined: Aug 2022
Posts: 1,478
Likes: 421
From: Ruskin, FL
Default

TH700r4 vs 4L60e in the 1996.
A really good rebuild on your 700r4 will not be pricey at all, as long as you can pull it out and put it back in. Good time for a new converter too.
Reply
Old Jan 1, 2025 | 01:24 AM
  #8  
arbee's Avatar
arbee
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2003
Posts: 2,677
Likes: 810
From: Saskatoon Sask.
Default

Originally Posted by Corvette_Dez
4L60 vs 4L60e in the 1996.
A really good rebuild on your4L60 will not be pricey at all, as long as you can pull it out and put it back in. Good time for a new converter too.
Fixed it for you. In his first post he says he has a '91.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-2

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

 Michael S. Palmer
story-3

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

 Joe Kucinski
story-4

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

 Joe Kucinski
story-5

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

 Verdad Gallardo
story-6

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

 Joe Kucinski
story-7

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

 Verdad Gallardo
story-8

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-9

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

 Michael S. Palmer
Old Jan 1, 2025 | 05:51 PM
  #9  
Logan931's Avatar
Logan931
Thread Starter
Heel & Toe
 
Joined: Mar 2023
Posts: 24
Likes: 4
Default

Originally Posted by arbee
Could be several different reasons. I shouldn't have to say this but make sure your fluid is up. Have your TV cable adjusted correctly. I would get a gauge on it and check the pressures. Because of the ratio, 1st doesn't need as much pressure as 2-4. When in reverse, the boost valve comes on increasing pressure. Plugged filter, cracked filter neck could cause low pressure. Just a few things to check. If you're unfamiliar with slush boxes, you are kind of at the mercy of transmission shops. All are going to tell you you need a total rebuild. You just got to use your judgement, ask around, read any available reviews and hope you actually get a shop that totally rebuilds it and doesn't just give you a "patch and seal".
fluid level good, TV cable adjusted, pressure in park 70psi, reverse 90psi, driving 75psi, and I don’t have 3rd or 4th actually but when I drop it down into 2nd it stops slipping and pressure is about 180psi when stopped drops to 95psi at 50 and 85psi at 60.
Reply
Old Jan 1, 2025 | 06:10 PM
  #10  
arbee's Avatar
arbee
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2003
Posts: 2,677
Likes: 810
From: Saskatoon Sask.
Default

Originally Posted by Logan931
fluid level good, TV cable adjusted, pressure in park 70psi, reverse 90psi, driving 75psi, and I don’t have 3rd or 4th actually but when I drop it down into 2nd it stops slipping and pressure is about 180psi when stopped drops to 95psi at 50 and 85psi at 60.
Ahhh! Different info. Before you said no 2nd or 4th. If you have no 3rd or 4th, that is a classic sign of 3-4 clutches done for. I have included the pressure chart for your trans.


Reply
Old Jan 1, 2025 | 06:20 PM
  #11  
Logan931's Avatar
Logan931
Thread Starter
Heel & Toe
 
Joined: Mar 2023
Posts: 24
Likes: 4
Default

[QUOTE=arbee;1608455084]Ahhh! Different info. Before you said no 2nd or 4th. If you have no 3rd or 4th, that is a classic sign of 3-4 clutches done for. I have included the pressure chart for your trans.

The way it felt when it was slipping had me thinking something else was off, I paid closer attention for the test drive with the pressure gauge installed. Looks like I need to find a different trans or get this one rebuilt.
Reply
Old Jan 1, 2025 | 07:43 PM
  #12  
Corvette_Dez's Avatar
Corvette_Dez
Drifting
Community Builder
Conversation Starter
Loved
Community Favorite
 
Joined: Aug 2022
Posts: 1,478
Likes: 421
From: Ruskin, FL
Default

Originally Posted by arbee
Fixed it for you. In his first post he says he has a '91.
No, I wrote what I meant. The 4l60 is merely a name change to the th700r4, and only in some literature. The fsm for my '93 cites the 700r4.
But nice job trying to clown me. You actually seem reasonably intelligent try using that intellect. Or try using some Windsor wrenches or sockets, and see how that works out for you.
Reply
Old Jan 1, 2025 | 07:50 PM
  #13  
arbee's Avatar
arbee
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2003
Posts: 2,677
Likes: 810
From: Saskatoon Sask.
Default

Originally Posted by Corvette_Dez
No, I wrote what I meant. The 4l60 is merely a name change to the th700r4, and only in some literature. The fsm for my '93 cites the 700r4.
But nice job trying to clown me. You actually seem reasonably intelligent try using that intellect. Or try using some Windsor wrenches or sockets, and see how that works out for you.
Sorry Hoss but you are 100% wrong no matter what you try and bluff through. Every GM printed literature, not just "some" signifies 1990 as the year of the changeover. There is a member here that says "Words mean something". A wife is a woman. So is a ***** a woman.. Can't imagine anyone calling their wife by the wrong name, can you?

PS - As I stated, GM literature calls items by their assigned names. You state your FSM calls it a 700R4. I just finished looking through the FSM and cannot find any such reference, only 4L60. If I am incorrect, please quote a section and/or page number so I can peruse.

Last edited by arbee; Jan 1, 2025 at 11:49 PM.
Reply

Get notified of new replies

To Transmission question





All times are GMT -4. The time now is 08:28 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-7
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-8
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-9
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE