700r4 lock up - The 1947 - Present Chevrolet & GMC Truck Message Board Network

meathead95 · 05-01-2007, 07:32 AM

anyone ever use one of these http://cgi.ebay.com/ebaymotors/700r4...QQcmdZViewItem

cooters · 05-01-2007, 09:02 AM

i would contact the company and find out where the sensor plugs in and whether it locks in 3rd or 4th. Looks like a good idea.

67ChevyRedneck · 05-01-2007, 09:09 AM

I've used that kit before. It uses the 4th gear pressure port on the outside of the transmission. It works very well for locking up the transmission, but the HUGE problem with the kit is that it does not unlock it when you apply the brakes (say, in a sudden stop.)

Some peckerhead pulled out in front of me a few years ago in Clemson and I had to hit the brakes hard. I missed the punk, but the hard stop from 50mph with the converter locked caused the truck to stall, with the power brakes dead it then took forever for the truck to come to a complete stop.

I now have a BTO kit with the brake switch. Very nice.

Goodguytrucks · 05-01-2007, 10:32 AM

You can also get a kit like that at bowtieoverdrives.com.
I bought a kit like that from them but I haven't install it yet
Here is the linkhttp://www.bowtieoverdrives.com/catalog/catalog_inc/viewitem.php?ITEMID=336

**LockDoc** · 05-01-2007, 10:52 AM

Quote:

Originally Posted by Goodguytrucks

You can also get a kit like that at bowtieoverdrives.com.
I bought a kit like that from them but I haven't install it yet
Here is the linkhttp://www.bowtieoverdrives.com/catalog/catalog_inc/viewitem.php?ITEMID=336

Goodguytrucks: If you edit your post and put a space between the words link & http: it should make the link clickable. No flame, just a suggestion.....

LockDoc

67ChevyRedneck · 05-01-2007, 10:58 AM

This is the kit I ordered:

http://www.bowtieoverdrives.com/cata...AT&CATID=OA1A3

And for this reason:

Quote:

This kit taps into your vehicles existing brake light circuit to disable converter clutch lock up whenever the brakes are applied. This built-in safety feature prevents stalling the engine at highway speeds if you should skid the rear tires while in lock up!

Which is exactly what happened to me with the other kit.

**passthebuck** · 05-01-2007, 06:16 PM

I bought this kit about 10 years ago when there wasnt much availible. It works great still.
http://www.painlessperformance.com/w...SearchField=13

dan468 · 05-01-2007, 07:29 PM

Quote:

Originally Posted by Goodguytrucks

You can also get a kit like that at bowtieoverdrives.com.
I bought a kit like that from them but I haven't install it yet
Here is the linkhttp://www.bowtieoverdrives.com/catalog/catalog_inc/viewitem.php?ITEMID=336

I've been checking these kits out and it seems BTO doesn't use a vaccum switch like painless. So if the truck is under a load in 4th, with the painless kit it will unlock the TC and allow the motor the catch up. Is this inaccurate about the BTO kit?

onetonk5 · 05-01-2007, 07:47 PM

Has anyone used the TCI 376600 lockup controller?

67ChevyRedneck · 05-02-2007, 08:14 AM

Quote:

Originally Posted by dan468

I've been checking these kits out and it seems BTO doesn't use a vaccum switch like painless. So if the truck is under a load in 4th, with the painless kit it will unlock the TC and allow the motor the catch up. Is this inaccurate about the BTO kit?

No, mine will unlock under load, and depending on how much load it will also downshift to 3rd.

dan468 · 05-03-2007, 11:34 AM

Quote:

Originally Posted by 67ChevyRedneck

No, mine will unlock under load, and depending on how much load it will also downshift to 3rd.

Which mechanism does the BTO kit use to unlock unload in 4th gear?

dan468 · 06-09-2007, 05:48 PM

Quote:

Originally Posted by dan468

Which mechanism does the BTO kit use to unlock unload in 4th gear?

Does anyone know?

67ChevyRedneck · 06-09-2007, 10:29 PM

A pressure switch that goes into the 4th gear port. When the load increases, so does the line pressure, so if there is enough pressure change it will unlock, if there is a lot of change, it will shift to third. That is my understanding of how it works.

**passthebuck** · 06-10-2007, 12:58 AM

the painlesskit unlocks automatically when you leave 4th gear. i think its the solenoid that only does the 4th gear lockup. that combined with a negative 4th gear pressure switch. you'd have to email painless wiring for how. i just know it works sweet.

05-01-2007, 07:32 AM	#1
meathead95 computer illiterate Join Date: Jan 2001 Location: Des Moines, IA Posts: 6,440	700r4 lock up anyone ever use one of these http://cgi.ebay.com/ebaymotors/700r4...QQcmdZViewItem __________________ 72 2wd blazer 72 swb 4x4

05-01-2007, 09:02 AM	#2
cooters Senior Member Join Date: Oct 2006 Location: Edmonton Alberta Posts: 458	Re: 700r4 lock up i would contact the company and find out where the sensor plugs in and whether it locks in 3rd or 4th. Looks like a good idea.

05-01-2007, 09:09 AM	#3
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: 700r4 lock up I've used that kit before. It uses the 4th gear pressure port on the outside of the transmission. It works very well for locking up the transmission, but the HUGE problem with the kit is that it does not unlock it when you apply the brakes (say, in a sudden stop.) Some peckerhead pulled out in front of me a few years ago in Clemson and I had to hit the brakes hard. I missed the punk, but the hard stop from 50mph with the converter locked caused the truck to stall, with the power brakes dead it then took forever for the truck to come to a complete stop. I now have a BTO kit with the brake switch. Very nice. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 05-01-2007 at 09:19 AM.

05-01-2007, 10:32 AM	#4
Goodguytrucks Registered User Join Date: Dec 2004 Location: Boyle, Alberta, Canada Posts: 126	Re: 700r4 lock up You can also get a kit like that at bowtieoverdrives.com. I bought a kit like that from them but I haven't install it yet Here is the linkhttp://www.bowtieoverdrives.com/catalog/catalog_inc/viewitem.php?ITEMID=336

05-01-2007, 06:16 PM	#7
passthebuck Sisyphus was my mentor! Join Date: Sep 2002 Location: Carleton Place, Ontario CANADA Posts: 984	Re: 700r4 lock up I bought this kit about 10 years ago when there wasnt much availible. It works great still. http://www.painlessperformance.com/w...SearchField=13 __________________ passthebuck #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car

05-01-2007, 07:47 PM	#9
onetonk5 Cereal Killer Join Date: Jan 2006 Location: Montgomery, Alabama Posts: 639	Re: 700r4 lock up Has anyone used the TCI 376600 lockup controller? __________________ If I dont do it....somebody else will.

06-09-2007, 10:29 PM	#13
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: 700r4 lock up A pressure switch that goes into the 4th gear port. When the load increases, so does the line pressure, so if there is enough pressure change it will unlock, if there is a lot of change, it will shift to third. That is my understanding of how it works. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

06-10-2007, 12:58 AM	#14
passthebuck Sisyphus was my mentor! Join Date: Sep 2002 Location: Carleton Place, Ontario CANADA Posts: 984	Re: 700r4 lock up the painlesskit unlocks automatically when you leave 4th gear. i think its the solenoid that only does the 4th gear lockup. that combined with a negative 4th gear pressure switch. you'd have to email painless wiring for how. i just know it works sweet. __________________ passthebuck #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car



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