Transgo Shift Kit
Thread Starter
2nd Gear
Joined: Feb 2006
Posts: 2
Likes: 0
Transgo Shift Kit
I bought a Transgo 700-2&3 shift kit for my 88 Vette and hope someone out there who has installed one can give me some clarification on how my trans will react after installation between drive and overdrive (3rd and 4th gear).On the street if i leave trans gearshift lever in overdrive will trans automatically shift from drive to overdrive or am i going to have to manually shift between the two. Also if i am on the highway and mash down on the accelerator pedal in overdrive will trans automatically select passing gear or will i have to manually downshift to drive. Page one instructions say high throttle 3-4 shift controlled by lever, am not sure what this means. Forgot to mention i have the type 2 valve body if it makes a difference. Also a big red nylon? check ball was in kit and there is no mention of it in instructions. Only place i can figure that it goes is to replace large steel check ball on upper lip of valve body for the TV valve assembly. Is this correct? Lastly any tips for modifying this kit for the street would be appreciated. Not real comfortable drilling holes in the valve body and hammering plugs into the trans case.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
If you don't get the answers here try the TransGo page or call their Tech line.
When a shop was doing my TransGo install they messed up my TC lockup and blamed it on the shift kit. A quick call to TransGo got me all the answers.
When a shop was doing my TransGo install they messed up my TC lockup and blamed it on the shift kit. A quick call to TransGo got me all the answers.
Drifting
Joined: Oct 2006
Posts: 1,934
Likes: 3
From: Citrus Heights California
Originally Posted by paul schechter
I bought a Transgo 700-2&3 shift kit for my 88 Vette and hope someone out there who has installed one can give me some clarification on how my trans will react after installation between drive and overdrive (3rd and 4th gear).On the street if i leave trans gearshift lever in overdrive will trans automatically shift from drive to overdrive or am i going to have to manually shift between the two. Also if i am on the highway and mash down on the accelerator pedal in overdrive will trans automatically select passing gear or will i have to manually downshift to drive. Page one instructions say high throttle 3-4 shift controlled by lever, am not sure what this means. Forgot to mention i have the type 2 valve body if it makes a difference. Also a big red nylon? check ball was in kit and there is no mention of it in instructions. Only place i can figure that it goes is to replace large steel check ball on upper lip of valve body for the TV valve assembly. Is this correct? Lastly any tips for modifying this kit for the street would be appreciated. Not real comfortable drilling holes in the valve body and hammering plugs into the trans case.
Race Director
Joined: Feb 2004
Posts: 12,517
Likes: 19
Originally Posted by paul schechter
I bought a Transgo 700-2&3 shift kit for my 88 Vette and hope someone out there who has installed one can give me some clarification on how my trans will react after installation between drive and overdrive (3rd and 4th gear).On the street if i leave trans gearshift lever in overdrive will trans automatically shift from drive to overdrive or am i going to have to manually shift between the two. Also if i am on the highway and mash down on the accelerator pedal in overdrive will trans automatically select passing gear or will i have to manually downshift to drive. Page one instructions say high throttle 3-4 shift controlled by lever, am not sure what this means. Forgot to mention i have the type 2 valve body if it makes a difference. Also a big red nylon? check ball was in kit and there is no mention of it in instructions. Only place i can figure that it goes is to replace large steel check ball on upper lip of valve body for the TV valve assembly. Is this correct? Lastly any tips for modifying this kit for the street would be appreciated. Not real comfortable drilling holes in the valve body and hammering plugs into the trans case.
Thread Starter
2nd Gear
Joined: Feb 2006
Posts: 2
Likes: 0
Originally Posted by Pete K
The transgo install is a bitch. Tough, tough job. It must be removed from the car to install the complete kit. The kit will allow full auto upshifts(including 3-4). None ofthe kits I have installed contained a big red nylon check ball. If you are confident in your ability, I would not discourage you from installing it.
Race Director
Joined: Feb 2004
Posts: 12,517
Likes: 19
Originally Posted by paul schechter
Pete K thanks for the reply. Will i still retain an automatic passing gear if im on the highway and mash down on the pedal with the trans in overdrive ? If this kit will still let me retain all the fully automatic features it came with i'll go for it. Had Hughes out here in Phoenix do my trans a few years back and told them not to shift kit it. They did their street/strip version with all the h/d stuff including billet servo assembley so i decided why not shift kit it. One thing that puzzles me is when i went to pull out the pressure regulator assembly from the pump it would not budge after taking the circlip off. Ended up drilling and tapping the bottom of the TV boost bushing and pulling it out with a bolt and piece of angle iron. When i got the boost valve out it miced out at .560. The biggest one ive seen on the market is .500. Ever heard of one this big? Figure i'll step it down to a .471 or .422. Thanks
The kit will allow for full auto upshifts.
Drifting
Joined: Feb 2006
Posts: 1,263
Likes: 0
From: CV ca
St. Jude Donor '11-'12-'13
I have the same shift kit. It works pretty good, but, If I leave the stick in d, coming to a stop,during it's downshift it clunks pretty loud. With stick in od it works fine. anybody run into that?
Pete, that is what I was going to ask you about.
Bryan
Pete, that is what I was going to ask you about.
Bryan
Burning Brakes
Joined: Jul 2001
Posts: 1,038
Likes: 3
From: Clinton IL
I completed the install from the pan only mods saving the other part for/if I ever have to pull the whole trans.
It came with a video and decent instructions. It was a lot of fun (my first time doing it), and I got HUGE results out of the car afterwards.
I highly recommend this kit!
It came with a video and decent instructions. It was a lot of fun (my first time doing it), and I got HUGE results out of the car afterwards.
I highly recommend this kit!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
