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

no first gear

Thread Tools
 
Search this Thread
 
Old Oct 30, 2010 | 04:45 PM
  #1  
ls1curt's Avatar
Thread Starter
8 Second Club
iTrader: (31)
 
Joined: Jun 2009
Posts: 1,206
Likes: 3
From: CT
Default no first gear

so my clutch has been slipping ever since my dyno, and i didnt have my new slave cylinder yet so i couldnt install my new mcleod before the track. the first pass was only a 1.78 60' and everything seemed fine, the pedal was stuck to the floor as normal but it still shifter fine. did anther run and that was a 1.75 60' but i missed 3rd and let off. went to get my time slip and it wouldnt go into 1st gear. it will go in but it just grinds if i let the clutch out. drove home with only 2nd and up. could this be the clutch causing this or is my 1st gear shot? i know the clutch was slipping a ton on my last pass cuz i stuffed it in third and it slipped a ton. ive never heard of anyone blowing first so i wanna know if i shoiuld rebuild my tranny while its out or if a new clutch will solve this.
thanks
Reply
Old Oct 30, 2010 | 06:58 PM
  #2  
85MikeTPI's Avatar
TECH Addict
iTrader: (9)
 
Joined: Jun 2008
Posts: 2,172
Likes: 10
From: Newark, DE
Default

Definitely get the clutch fixed.. The 1st gear grinding is probably because it's not fully engaging.. Probable causes are 1) Shifter stop loosened up 2) fork pads broken 3) synchro keys broken.

Sounds like you should at least open up the trans and go through it (unless of course you find a shifter stop causing the engagement issue)
Reply
Old Oct 31, 2010 | 12:39 PM
  #3  
ls1curt's Avatar
Thread Starter
8 Second Club
iTrader: (31)
 
Joined: Jun 2009
Posts: 1,206
Likes: 3
From: CT
Default

well i took it out today and i finally jammed it into first and it holds fine. after driving it a little, it now goes in fine now. its wierd. so i think my tranny is fine. hopefully ill have the new clutch in this week.
Reply
Old Oct 31, 2010 | 12:58 PM
  #4  
Mikey 97Z M6's Avatar
11 Second Club
iTrader: (37)
 
Joined: Mar 2004
Posts: 2,046
Likes: 3
From: Vancouver, WA
Default

Sounds like something is going on with the 1-2 syncro assembly, either worn syncro/blocker ring, or damaged/broken keys in the 1-2 syncro assy.

Edit: oops, just notice that Mike covered that already lol...

Mike
Reply
Old Oct 31, 2010 | 03:50 PM
  #5  
ls1curt's Avatar
Thread Starter
8 Second Club
iTrader: (31)
 
Joined: Jun 2009
Posts: 1,206
Likes: 3
From: CT
Default

but wouldnt 1-2 syncros be going from first to second gear?
Reply
Old Oct 31, 2010 | 04:35 PM
  #6  
TDP's Avatar
TDP
FormerVendor
iTrader: (23)
 
Joined: Aug 2003
Posts: 800
Likes: 0
From: Fort Worth, TX
Default

Well that is odd. The tranny or clutch will never fix itself like that. It does sound like you may have something broken inside the trans on the 1-2 synchro. A key could have been damaged, and then broke completely causing the problems youre having.
If you need a new clutch, I sell the Diamond Clutch line. Check the websites in my sig. It's just $409 for a stage 2 and thats what most people go with. I also offer package deals with a T56 rebuild and clutch purchase. Let me know if I can help! Thanks

Jason
Reply
Old Oct 31, 2010 | 06:10 PM
  #7  
ls1curt's Avatar
Thread Starter
8 Second Club
iTrader: (31)
 
Joined: Jun 2009
Posts: 1,206
Likes: 3
From: CT
Default

TDP, if you were a little closer i would def. be having you rebuild my tranny. that looks like a real good deal you have there. i already have a mcleod rxt sitting in my garage waiting to be installed as soon i get my new slave.
Reply




All times are GMT -5. The time now is 09:14 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE