No 3rd or 4th gear.
Thread Starter
Staging Lane
Joined: Jan 2004
Posts: 92
Likes: 0
From: Granite City, IL
No 3rd or 4th gear. I was driving on to the highway tonight and all of a sudden I had no 3rd or 4th gear. The car will downshift if I punch it, converter flashes and then when it shifts into 3rd there's nothing...like I'm in neutral. 4th gear is the same way. Should I start looking for a new transmission? 
TECH Fanatic
Joined: Oct 2003
Posts: 1,514
Likes: 0
From: Long Island, NY
Originally Posted by mean02
I was driving on to the highway tonight and all of a sudden I had no 3rd or 4th gear. The car will downshift if I punch it, converter flashes and then when it shifts into 3rd there's nothing...like I'm in neutral. 4th gear is the same way. Should I start looking for a new transmission?
TECH Fanatic
Joined: Oct 2003
Posts: 1,514
Likes: 0
From: Long Island, NY
id go with a stronger unit for 430 RWHP. my 65 works real well for my power level but it was really only designed to withstand the torque of a stock LS6 motor (GM never ended up building an LS6/4L65 performance car). i make about 400 hp at the flywheel so im right there. the stuff in the 65 is upgraded but there are stronger upgrades out there. I mainly went with it because it was brand new, not rebuilt and had a warranty. 
The best replacements out there for the 3-4 clutch pack seem to be the Raybestos single-sided Z-Pak set.
Check them out.
http://www.transtarindustries.com/Fi...Product-63.pdf
Check them out.
http://www.transtarindustries.com/Fi...Product-63.pdf
