Transmissions and Drivetrain Need help with your trans? Problems with your axle?

700r4 problem

Thread Tools
 
Search this Thread
 
Old Mar 26, 2010 | 07:30 PM
  #1  
chas0218's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2008
Posts: 660
Likes: 1
From: Corning NY
Car: 86' IROC
Engine: 388
Transmission: Built 700r4
Axle/Gears: 3.08 non-posi
700r4 problem

I installed this 700r4 under the assumption that the tranny had 5000 miles on it and in great working order. It was built by a guy that knew what he was doing that has built multiple transmission for other people with no hiccups.

So my problem is when i put the car into neutral it lunges ever so slightly forward.

I double checked my linkage and when the shifter is in any gear i can take the pivot pin and it comes in and out of the selector's hole on the side of the tranny fine. I am putting the pivot pin in the right hole i triple checked my linkage and pivot pin placement.

I bought a new TV cable (also known as Detent according to advance auto and auto zone) and am waiting for the temps to get up above 20* until i install it. My current TV cable doesn't rachet when you open the throttle.

I have all the appropriate brackets. And have made sure to everything is hooked up right (checked at least 3 times over.)

The tanny is a little on the full side also so could that be causing the problem? Its a little above the hot mark when its cold or just sitting there.

Any input would be great.
Thanks Everyone

Last edited by chas0218; Mar 27, 2010 at 09:13 AM.
Reply
Old Mar 26, 2010 | 11:04 PM
  #2  
sgt473's Avatar
Junior Member
 
Joined: Nov 2008
Posts: 47
Likes: 0
From: Pa.
Car: 87 Z28
Engine: LB9
Transmission: 4L60
Axle/Gears: 2:73
Re: 700r4 problem

You might not have enough clearance in the forward clutch pack, all so check the position of the manual valve with the pan removed some times the link between the shift lever (AKA roster comb)and manual valve is bent. You may have a cross leak in the pump or a cracked input shaft. good luck
Reply
Old Mar 27, 2010 | 09:10 AM
  #3  
chas0218's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2008
Posts: 660
Likes: 1
From: Corning NY
Car: 86' IROC
Engine: 388
Transmission: Built 700r4
Axle/Gears: 3.08 non-posi
Re: 700r4 problem

Originally Posted by sgt473
You might not have enough clearance in the forward clutch pack, all so check the position of the manual valve with the pan removed some times the link between the shift lever (AKA roster comb)and manual valve is bent. You may have a cross leak in the pump or a cracked input shaft. good luck
Can this all be checked by pulling the pan?

I will take a look at my rebuilding books to try and locate the above mentioned parts. Is the only way to replace the parts by pulling the tranny and rebuilding?
Reply
Old Mar 28, 2010 | 11:09 PM
  #4  
sgt473's Avatar
Junior Member
 
Joined: Nov 2008
Posts: 47
Likes: 0
From: Pa.
Car: 87 Z28
Engine: LB9
Transmission: 4L60
Axle/Gears: 2:73
Re: 700r4 problem

You should be able to check all but the clutch clearance. The linkage can be replaced by removing the trans pan.
Reply
Old Mar 30, 2010 | 12:17 AM
  #5  
Pro Built Automatics's Avatar
Supreme Member
25 Year Member
 
Joined: Jul 1999
Posts: 3,479
Likes: 54
From: Calimesa, California, U.S.
Re: 700r4 problem

I gather a tight foward clutch clearance could cause this, but i would not worry about this as I have seen this many times over the years, and in many different types of transmissions.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
camaro11j
Transmissions and Drivetrain
4
Sep 19, 2018 08:49 AM
someone972
Transmissions and Drivetrain
6
Aug 30, 2015 12:52 AM
Frismund Snoid
Transmissions and Drivetrain
3
Aug 27, 2015 11:08 AM
g.l.mos
Camaros for Sale
0
Aug 22, 2015 12:02 AM
TreDeClaw
Transmissions and Drivetrain
15
Aug 14, 2015 06:58 PM




All times are GMT -5. The time now is 04:47 AM.