question automatic to 4 speed
Race Director
Joined: Oct 2008
Posts: 19,147
Likes: 1,667
From: Long Island
I helped a friend put an SST conversion kit in last year, great conversion and the 5 speed is great. The kit has all the needed parts, no cutting the drive shaft.
I agree the 4 speed is not so good the 5 or 6 speed is fantastic.
I converted my 71 from a 4 speed to a 5 speed with the Tremic kit by Silver Sport and was very pleased.
I agree the 4 speed is not so good the 5 or 6 speed is fantastic.
I converted my 71 from a 4 speed to a 5 speed with the Tremic kit by Silver Sport and was very pleased.
Burning Brakes
Joined: Jan 2012
Posts: 943
Likes: 73
As the owner of an 80 with the original 4 speed, the rear is a 3.07, not 3.08. If it was an automatic and I was switching out the tranny, I would go with an overdrive auto or a 5 speed.
The 5 speed would also allow me to switch out the 3.07 rear gears. Putting a 4 speed in place of the automatic will basically limit you to the existing rear.
Regarding a replacement shifter of better quality? If anyone knows of a direct, bolt in replacement, I would love to know about it. The factory shifter bolts to the crossmember. Even with a new shifter put in by the owner before me, this is not an example of "excellent" GM quality, to say the least.
The 5 speed would also allow me to switch out the 3.07 rear gears. Putting a 4 speed in place of the automatic will basically limit you to the existing rear.
Regarding a replacement shifter of better quality? If anyone knows of a direct, bolt in replacement, I would love to know about it. The factory shifter bolts to the crossmember. Even with a new shifter put in by the owner before me, this is not an example of "excellent" GM quality, to say the least.
Melting Slicks
Joined: Dec 2009
Posts: 3,224
Likes: 652
From: Thunder Bay
As the owner of an 80 with the original 4 speed, the rear is a 3.07, not 3.08. If it was an automatic and I was switching out the tranny, I would go with an overdrive auto or a 5 speed.
The 5 speed would also allow me to switch out the 3.07 rear gears. Putting a 4 speed in place of the automatic will basically limit you to the existing rear.
Regarding a replacement shifter of better quality? If anyone knows of a direct, bolt in replacement, I would love to know about it. The factory shifter bolts to the crossmember. Even with a new shifter put in by the owner before me, this is not an example of "excellent" GM quality, to say the least.
The 5 speed would also allow me to switch out the 3.07 rear gears. Putting a 4 speed in place of the automatic will basically limit you to the existing rear.
Regarding a replacement shifter of better quality? If anyone knows of a direct, bolt in replacement, I would love to know about it. The factory shifter bolts to the crossmember. Even with a new shifter put in by the owner before me, this is not an example of "excellent" GM quality, to say the least.
Burning Brakes
Joined: Jan 2012
Posts: 943
Likes: 73
