Lock out transmission

Reply Subscribe

Thread Tools

Search this Thread

Feb 28, 2022 | 09:26 AM

Golferdad

Thread Starter

Burning Brakes

Joined: Feb 2022

Posts: 988

Likes: 183

From: South Carolina

Lock out transmission

Ok,my recently purchased 1981,is original,so computer carburetor,which I’m thinking of putting a older model carb and distributor,and will also attempt to put on long tube headers,my ? Is if I understand correctly that the converter has a lock out on it,which I’m assuming is related to this computer,so if I swap the carb and distributor,how can you bypas the lock out. Thanks

Mar 1, 2022 | 03:37 AM

doorgunner

2026 Loser of the Year

Joined: Sep 2013

Posts: 36,578

Likes: 7,017

From: New Or-leens Loo-z-anna

You should keep the LOCKUP
Vendors sell the lockup kits for less than $100. Buy a quality kit so the trans will not "hunt" for lockup.

Mar 1, 2022 | 07:45 AM

Jebbysan

Dr. Detroit

Joined: Mar 2012

Posts: 10,097

Likes: 4,027

From: New Braunfels Texas

Once it is disabled it acts like any pre-1981 TH350 trans......
But, as mentioned.....if you can make it work....you should.....it is worth a few MPG on the Highway......

Jebby

Mar 1, 2022 | 08:22 AM

Golferdad

Thread Starter

Burning Brakes

Joined: Feb 2022

Posts: 988

Likes: 183

From: South Carolina

I will,thanks would like to keep it if possible,

Mar 1, 2022 | 08:52 AM

redwingvette

Safety Car

Joined: Aug 2001

Posts: 3,683

Likes: 202

From: Waterford Mi

When I installed the 200-R4 in my 73 I bought a

B&M 70244 Converter Lockup Controller, GM Auto Trans

I set it loch at 45mph. This was back in 2002 and I have not had any issues with it.

Mar 1, 2022 | 09:07 AM

Golferdad

Thread Starter

Burning Brakes

Joined: Feb 2022

Posts: 988

Likes: 183

From: South Carolina

Transmission

And curious is this a lock out for security to keep someone from stealing it or for safety so you don’t hurt or break transmission.

Mar 1, 2022 | 09:58 AM

spikebot 81

Racer

Joined: Dec 2007

Posts: 341

Likes: 29

From: vancouver washington

The term is lock up. The transmission has components designed to lock up the torque converter at certain speed for gas mileage savings

Mar 1, 2022 | 10:20 AM

Golferdad

Thread Starter

Burning Brakes

Joined: Feb 2022

Posts: 988

Likes: 183

From: South Carolina

Ok now I’m confused,lol...which isn’t hard,so has nothing to do with transmission converter,correct when it says converter,you’re talking Catalytic converter,if that’s the case,someone replaced the pipes years ago,so catalytic converters are gone.