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

78customdeluxe · 02-25-2003, 08:33 PM

hey i have a 700r4 tranny and i want to make it so it will shift into overdrive when the pedal is near wot. i found this on the web http://www.kdsperformance.com/supdelcorser.html , i would prefer if i could get something at a parts store around instead of ordering something online. but i dont know what to ask for. thanks

Steve

**swervin ervin** · 02-25-2003, 09:07 PM

I think that police cruisers that came with 700R4's had a special throttle valve in them so it would stay in 4th at wot. I have no idea on the part number, but it was a stock GM part.

I also found this one.

http://www.superiortransmission.com/...mance/k015.htm

LOHRTBT · 02-25-2003, 09:21 PM

Mine has no problem staying in 4th at WOT...am I missing something??

bagged78 · 02-25-2003, 09:22 PM

Try looking here..
www.700r4.com

I belive the valve that Mike is talking about is for a Corvette, not sure thou.

78customdeluxe · 02-25-2003, 11:32 PM

so what do you think about something like that link. if i understand right that diffrent sleeve and boost valve itself should let it go into overdrive am i right? i also thought the new servo might be good because i would like some more solid shifts too. but really im mad because i lost to a mustbang one day because it wouldnt shift into overdrive.

How hard is it for someone to put one of these things in? ive never been inside of a auto tranny before, i have rebuilt hydro drives in tractors before though if that makes any diffrence. can it be done in a day with only the basic tools? will the valve body have to come out? thanks

gchemist · 02-26-2003, 12:34 AM

Word from the wise, before carefull installing the Vetter servo. I lost one 700R4 due to a bad installation. That's how I ended up getting my performance 700R4. The band clearance should be checked when the Vetter servo is installed. If it's too tight the tranny won't shift from 1-2. This will kill the tranny. If clearance is to loose then you burn the clutches. I would suggest installing the Vetter servo with the tranny out. Yes you can install it with no problems. I lost one 700R4 and I won't loose another one like that again. Too expensive.

Mike,
Thanks for the link. I like that 3-4 upshift at WOT. Kinda scary with a powerful engine. I would like to speed up in OD too. I really hate the kickdown on the part throttle. Installing the valve seems to be a very easy job. I'm still waiting to modify the governor too.

02-25-2003, 08:33 PM	#1
78customdeluxe Registered User Join Date: Dec 2002 Location: Upper Sandusky Ohio Posts: 72	700r4 hey i have a 700r4 tranny and i want to make it so it will shift into overdrive when the pedal is near wot. i found this on the web http://www.kdsperformance.com/supdelcorser.html , i would prefer if i could get something at a parts store around instead of ordering something online. but i dont know what to ask for. thanks Steve __________________ 88 Crewcab Dually 5.9 Cummins, 5306 Eaton 6-speed, converted 4x4 w/52's up front, 90 front clip(parting out) 1986 ElCamino (needs motor) 1970 C30(future service truck for my ag-equipment repair business) 1970 CST10(parting out and partial donor for the '70 C30) 2000 GMC 1500 ext cab sb, z71, 5.3 loaded auto

02-25-2003, 09:07 PM	#2
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	I think that police cruisers that came with 700R4's had a special throttle valve in them so it would stay in 4th at wot. I have no idea on the part number, but it was a stock GM part. I also found this one. http://www.superiortransmission.com/...mance/k015.htm __________________ Mike 1985 Chevy C-10

02-25-2003, 09:21 PM	#3
LOHRTBT BeWarE tHe eViL CrAnkTOe! Join Date: Oct 2002 Location: Yukon, OK Posts: 3,605	Mine has no problem staying in 4th at WOT...am I missing something?? __________________ ~Dave~ You can call me Mike, Mike Oxlong - 1986 Chevy SWB - Stock for now - *1986 Chevy Custom SWB* *Stolen 6/26/05* - 1985 Chevy SWB SOLD - 1999 T/A Some mods www.cardomain.com/id/ramairdave AIM Screenname - Jester84

02-25-2003, 09:22 PM	#4
bagged78 world class smart ass! Join Date: Jan 2003 Location: Clinton Utah Posts: 335	Try looking here.. www.700r4.com I belive the valve that Mike is talking about is for a Corvette, not sure thou. __________________ Aric 75 2WD BLAZER (never ending project) -some day maybe- 02 2500HD CREW CAB 4X (daily drive) -8" lift 37s and 22s- ____ ____________________________

02-25-2003, 11:32 PM	#5
78customdeluxe Registered User Join Date: Dec 2002 Location: Upper Sandusky Ohio Posts: 72	so what do you think about something like that link. if i understand right that diffrent sleeve and boost valve itself should let it go into overdrive am i right? i also thought the new servo might be good because i would like some more solid shifts too. but really im mad because i lost to a mustbang one day because it wouldnt shift into overdrive. How hard is it for someone to put one of these things in? ive never been inside of a auto tranny before, i have rebuilt hydro drives in tractors before though if that makes any diffrence. can it be done in a day with only the basic tools? will the valve body have to come out? thanks __________________ 88 Crewcab Dually 5.9 Cummins, 5306 Eaton 6-speed, converted 4x4 w/52's up front, 90 front clip(parting out) 1986 ElCamino (needs motor) 1970 C30(future service truck for my ag-equipment repair business) 1970 CST10(parting out and partial donor for the '70 C30) 2000 GMC 1500 ext cab sb, z71, 5.3 loaded auto Last edited by 78customdeluxe; 02-25-2003 at 11:43 PM.

02-26-2003, 12:34 AM	#6
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Word from the wise, before carefull installing the Vetter servo. I lost one 700R4 due to a bad installation. That's how I ended up getting my performance 700R4. The band clearance should be checked when the Vetter servo is installed. If it's too tight the tranny won't shift from 1-2. This will kill the tranny. If clearance is to loose then you burn the clutches. I would suggest installing the Vetter servo with the tranny out. Yes you can install it with no problems. I lost one 700R4 and I won't loose another one like that again. Too expensive. Mike, Thanks for the link. I like that 3-4 upshift at WOT. Kinda scary with a powerful engine. I would like to speed up in OD too. I really hate the kickdown on the part throttle. Installing the valve seems to be a very easy job. I'm still waiting to modify the governor too. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.