SST 5 speed
Thread Starter
Intermediate
Joined: Nov 2020
Posts: 36
Likes: 2
From: Williams, AZ
SST 5 speed
Who's done it? Was it worth it? Was it hard to do?
I've got a 1975 l48 4-speed, I'm considering going this path but am unsure if it is cost effective. Any benefits that I may not have considered?
Also are these bolt-in kits?
I've got a 1975 l48 4-speed, I'm considering going this path but am unsure if it is cost effective. Any benefits that I may not have considered?
Also are these bolt-in kits?
Drifting
Joined: Mar 2009
Posts: 1,461
Likes: 361
From: Monson MA
I installed a SST Tremic TKO600 5 speed in my 68. I was in the middle of a full restoration so it was pretty routine. The most detailed portion was clocking rhe bell housing. The car with 3:73 gears is a hoot to drive around town. Get to the highway, put it in 5th and cruise at 2500 rpm with no drama. Was it worth 4k, absolutely.
Last edited by twinpack; Feb 15, 2021 at 09:56 AM.
Drifting
Joined: Dec 2011
Posts: 1,743
Likes: 289
From: Chardon Ohio
Here is my thread from a couple years ago:
https://www.corvetteforum.com/forums...0-install.html
It wasn't bad and I love the five speed.
https://www.corvetteforum.com/forums...0-install.html
It wasn't bad and I love the five speed.
Team Owner
Joined: Jan 2006
Posts: 39,390
Likes: 171
From: Into the Mystic And yet, despite the look on my face, you're still talking TN
St. Jude Donor '09 thru '25
Best bang for the buck mod I have done on my car. Before 80 mph was 4000 rpm, now it's about 2300. Huge difference.
The SST people are great to work with and very knowledgeable. You will not regret it.
<<<<<<<<<<<<< see my avatar.
The SST people are great to work with and very knowledgeable. You will not regret it.
<<<<<<<<<<<<< see my avatar.
Melting Slicks
Joined: Oct 2001
Posts: 2,065
Likes: 1,395
From: Halifax, Nova Scotia, Canada
I installed a SST Tremic TKO600 5 speed in my 68. I was in the middle of a full restoration so it was pretty routine. The most detailed portion was clocking rhe bell housing. The car with 3:73 gears is a hoot to drive around town. Get to the highway, put it in 5th and cruise at 2500 rpm with no drama. Was it worth 4k, absolutely.
- I have side exhaust, the drop in noise when in 5 th is great!
- Huge improvement in fuel mileage. (Savings in fuel won't off set the price - however it might if I live to be 150 years old)
Last edited by Barry's70LT1; Feb 15, 2021 at 01:10 PM.
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Racer
Joined: Apr 2009
Posts: 331
Likes: 44
From: Cincinnati Ohio
I put a TKO-600 in my 73 L-82. I got mine from American Powertrain and I have nothing but praise for their kit and support. The shift lever is dead on where the old one was located. I installed mine myself with no issues. So much better to cruise. I got the .82 fifth gear and am happy with it. I had also put this same model transmission in my 55 Chev. Replaced Muncie M-21 in both vehicles.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Id call them, tell them which engine you have, rear end gear, style of driving let them decide.
Any OD swap is totally worth it (cost effective) it really transforms the car and gets you more useage.
Youll forget all about the $ once you drive it, its one of those things you do cause you want to.
With 65mph speed limits and most going 10plus over you almost need one these days.
After having a 6 spd with 4.11s a 5 spd is plenty suffiicent.
Any OD swap is totally worth it (cost effective) it really transforms the car and gets you more useage.
Youll forget all about the $ once you drive it, its one of those things you do cause you want to.
With 65mph speed limits and most going 10plus over you almost need one these days.
After having a 6 spd with 4.11s a 5 spd is plenty suffiicent.