T Thomas New member Jan 28, 2011 #1 I would like to know how fast you will be going when the transmission shifts from 1st to 2nd to 3rd gear. The transmission is the GM 4T40 transmission in a 1999 pontiac sunfire.
I would like to know how fast you will be going when the transmission shifts from 1st to 2nd to 3rd gear. The transmission is the GM 4T40 transmission in a 1999 pontiac sunfire.
