Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

Won't go into 5th

Thread Tools
 
Search this Thread
 
Old Dec 11, 2007 | 01:39 PM
  #1  
blu98ta's Avatar
Thread Starter
12 Second Club
iTrader: (4)
 
Joined: Aug 2003
Posts: 969
Likes: 0
From: Spring, TX
Default Won't go into 5th

I'm having an issue with the tranny not going into 5th. When i go to **** into 5th the shifter just starts vibrating. Even if I try to force it, it doesn't go into 5th. I tried backing out the screw on my pro5.0, but that hasn't helped. I thought I backed it out enough, but maybe I haven't. I got the tranny off another board member, and have not been able to get into 5th since i installed it. He said the day before he took the tranny out of his car, he was able to go into every gear. Any suggestions. Should I try backing the screw out more?
Reply
Old Dec 11, 2007 | 03:30 PM
  #2  
fitz98ta's Avatar
10 Second Club
iTrader: (29)
 
Joined: Feb 2004
Posts: 409
Likes: 1
From: Springfield MO
Default

sounds like you have syncro or slider gear problems to me.

i don't see how unscrewing the stop on your shifter is gonna help, if it allows you to go into the other gears.

he prob missed 3rd and hit 5th and fried something in trans.
Reply
Old Dec 11, 2007 | 04:17 PM
  #3  
RealLiveMD's Avatar
TECH Enthusiast
20 Year Member
iTrader: (1)
 
Joined: Mar 2005
Posts: 552
Likes: 0
Default

I agree with fitz98t. If it were a clutch problem I hear reverse is the gear that you won't be able to go in. Search can't go into 6th and you'll see I had this same problem. Eventually cost $1300 for the rebuild which took about 8-10 days. Drive it untill you can afford it though, because the rebuild price isn't going to change much. Only a 100 bucks if you have to change out the gear. You don't need 5th anyway. You have your overdrive for highway and you should get through the quarter with 4 gears.
Reply
Old Dec 12, 2007 | 07:01 AM
  #4  
Fran D's Avatar
TECH Regular
20 Year Member
iTrader: (5)
 
Joined: Nov 2001
Posts: 422
Likes: 0
From: Washington Crossing, PA
Default

There's also a very common problem with these F-Body T-56s where the mainshaft and the 5/6 drive gear are only splined for half the length of the gear. It can begin to allow the 5/6 gear to rock on the shaft, making it hard to get into 5th and, eventually, impossible. This happened to my trans, albeit after 105K miles. Getting into every other gear was no problem, but 5th was impossible. Unfortunately, the only fix is a new mainshaft and 5/6 drive gear.
Reply
Old Dec 12, 2007 | 09:20 AM
  #5  
blu98ta's Avatar
Thread Starter
12 Second Club
iTrader: (4)
 
Joined: Aug 2003
Posts: 969
Likes: 0
From: Spring, TX
Default

6th gear has no problems at all. 6th gear works perfect. Im not worried about the 1/4 right now, cuz the car doesn't go there but once or twice a year. I worried about daily driving.
Reply
Old Dec 12, 2007 | 09:43 AM
  #6  
bjamick's Avatar
TECH Veteran
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (31)
 
Joined: May 2006
Posts: 4,218
Likes: 3
From: Birmingham AL.
Default

Call six speed inc and tell them your problem. They will be able to tell you what needs to be done to fix it.
Reply




All times are GMT -5. The time now is 11:06 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE