How to tell a 82-87 700R4 from a 88-92? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lukecp · 06-10-2002, 07:55 PM

I'm looking to buy a 700R4 to get rebuilt and stick in my '72. I found one at a salvage yard that needs rebuilt for $45. How will i tell if it is a 82-87 one or a 88-92? I don't want to get a older model, they are alot weaker i hear. I found a tranny decoder on the internet, and it showed which number in the vehicle VIN stamped on the tranny to look at for the year, but it only shows the last number in the year, like 3=1983. That wouldn't be a problem, but i don't want to get stuck with a '82 700R4 thinking it is a '92 model. Are they any physical differences on the outside of the case, or any other numbers i can look at? Also, the tranny guy said that i can use a lockup converter, and he can wire a switch and put it on my dash so i can have it lock or unlock whenever i want. Does that seem like a good idea? 2 other questions, can i modify my shift linkage so i can hold the tranny in 1st gear, and would a RV-style shift kit give me a nice firm shift, and bark the tires in the 1-2 shift when i mash the throttle? I don't want it to shift to hard all the time, but i would like that nice little "chirp" when the RPM's are high so i can show off a little

.

1-PU70 · 06-10-2002, 08:40 PM

You can use a trany from 87 and up. There is a cast seem on the side that has the cooler lines. Its shaped like a rain bow and goes through one of the cooler lines.That meens its a 87 or newer.

Gordo · 06-10-2002, 09:06 PM

I have a B&M Shift improver kit in my 700R4, and yes it gives me the chirp from 1st to 2nd under light acceration or smokes em under heavy acceleration. Mine is a 1985 model professionally rebuilt with upgrades and has over 40K on it now with towing included.

lukecp · 06-10-2002, 09:13 PM

Gordo, are you using the RV/Towing kit, or the Street/Strip kit? Thanks for all the help guys!

Gordo · 06-10-2002, 09:20 PM

I went for the street/strip set up.

06-10-2002, 07:55 PM	#1
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	How to tell a 82-87 700R4 from a 88-92? I'm looking to buy a 700R4 to get rebuilt and stick in my '72. I found one at a salvage yard that needs rebuilt for $45. How will i tell if it is a 82-87 one or a 88-92? I don't want to get a older model, they are alot weaker i hear. I found a tranny decoder on the internet, and it showed which number in the vehicle VIN stamped on the tranny to look at for the year, but it only shows the last number in the year, like 3=1983. That wouldn't be a problem, but i don't want to get stuck with a '82 700R4 thinking it is a '92 model. Are they any physical differences on the outside of the case, or any other numbers i can look at? Also, the tranny guy said that i can use a lockup converter, and he can wire a switch and put it on my dash so i can have it lock or unlock whenever i want. Does that seem like a good idea? 2 other questions, can i modify my shift linkage so i can hold the tranny in 1st gear, and would a RV-style shift kit give me a nice firm shift, and bark the tires in the 1-2 shift when i mash the throttle? I don't want it to shift to hard all the time, but i would like that nice little "chirp" when the RPM's are high so i can show off a little . __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

06-10-2002, 08:40 PM	#2
1-PU70 Registered User Join Date: Apr 2000 Location: Bradenton, FL Posts: 1,036	You can use a trany from 87 and up. There is a cast seem on the side that has the cooler lines. Its shaped like a rain bow and goes through one of the cooler lines.That meens its a 87 or newer. __________________ 1970 CST/10 402,700R4,3:73 posi,AC,PS,PB,TLT,PW,Buckets with heaters

06-10-2002, 09:06 PM	#3
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	I have a B&M Shift improver kit in my 700R4, and yes it gives me the chirp from 1st to 2nd under light acceration or smokes em under heavy acceleration. Mine is a 1985 model professionally rebuilt with upgrades and has over 40K on it now with towing included. __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.

06-10-2002, 09:13 PM	#4
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	Gordo, are you using the RV/Towing kit, or the Street/Strip kit? Thanks for all the help guys! __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

06-10-2002, 09:20 PM	#5
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	I went for the street/strip set up. __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.