This is a discussion on gear help within the Manual Transmission forums, part of the Drivetrain category; so, i was thinking about putting 4.10's in the rear but don't want to loose what fuel economy i have. ...
06-21-2010, 07:48 AM #1
- Join Date
- Jun 2007
- Montpelier, VA
- 2000 Pontiac Trans Am
so, i was thinking about putting 4.10's in the rear but don't want to loose what fuel economy i have. has anyone seen or heard of a replacement 6th gear that would reduce the ratio so that the overall gear ratio was the same before the swap as after when in 6th gear.
i need new syncros for 3/4 so if im going in the tranny i might as well have them throw the new 5/6th gears in.
06-21-2010, 08:05 AM #2
- Join Date
- Jan 2010
- East of Cleveland, Ohio
- 99 WS.6 - Modified
I put 4.10s in mine and really didn't lose any mpg. By 6th, at 65 mph - if I remember correctly I'm at maybe 2100 rpm or so. I'm not sure if other 6th gear ratios are available for the t-56 or not.
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