Dan & SlimFast,
This is exactly my very same question as well???? What IS wrong w/ the 5-speed????
As I've told others in the past, you're NOT gaining anything in the lower gear selection w/ the Getrag 6-speeds, except for a extra gear between 3rd & 5th gears... As I've mentioned in the past, 5th gear on the Getrag V160/V161 is the 1:1 gear ratio, which is the same as our 4th gear on the W58. THE GETRAG 6-SPEED DOES NOT HAVE TWO OVERDRIVE RATIO's, it only has ONE, which is 6th gear!!!!!
If you are still running a M series motor, this is not worth a upgrade, IMHO.
