Results 1 to 5 of 5
Thread: 4L80e Shifting
-
05-10-2020 #1
Registered User
- Join Date
- Feb 2011
- Posts
- 284
4L80e Shifting
Recently I went from a 200-4r trans to a 4L80e behind my gen4 5.3. Factory 70 GTO shifter. E38 PCM/T42 TCM. Works great but my tuner tells me that I can no longer hold gears with my shifter, it basically just runs PRND. Is he right?? If so that will SUCK for mountain road driving and I'll be pretty disappointed. Haven't read about that anywhere and never would have gone that route if thats the case. Currently I need to put the shifter in the 2 position to get drive.
Is there no way to hold gears powering uphill or for engine braking downhill with the cable shifter???
70 GTO - Alum 5.3/4L80e, 7875
17 GT350
-
05-11-2020 #2
Registered User
- Join Date
- Nov 2006
- Location
- Mountain Springs, Texas
- Posts
- 4,495
You can get a shifter modification kit from Shiftworks to add the extra detents.
Don1969 Camaro - LSA 6L90E AME sub/IRS
1957 Buick Estate Wagon
1959 El Camino - Ironworks frame
1956 Cameo - full C5 suspension/drivetrain
1959 Apache Fleetside
05-11-2020 #3
Registered User
- Join Date
- Feb 2011
- Posts
- 284
I know. Point is, my tuner tells me that it doesnt matter what position the shifter is in, it will just be in D. True? Or not?
70 GTO - Alum 5.3/4L80e, 7875
17 GT350
05-11-2020 #4
-Moderator/Sponsor-
- Join Date
- Apr 2001
- Location
- The City of Fountains
- Posts
- 15,975
I am pretty sure that is incorrect...but I do not know that 100%.
Originally Posted by Interceptor5588
Andrew1970 GTO Version 3.0
1967 Cougar build
GM High-Tech Performance feature
My YouTube Channel Please Subscribe!
Instagram @projectgattago
Dr. EFI
I deliver what EFI promises.
Remote Holley EFI tuning.
Please get in touch if I can be of service.
"You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her
05-11-2020 #5
Registered User
- Join Date
- Jul 2006
- Location
- Carson City Mi.
- Posts
- 54
he is wrong I have a 4l80 in my 55 chevy and I can hold my rpms and shift when I want,the only mod I did was a transgo shift kit
Reply With Quote
