1996 f150
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Junior User
Joined: Feb 2011
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1996 f150
hello gentlemen,
it has been a while since i have posted i hope all is well. here is the deal. i replaced my 2.73 gears with 3.73 gears with a limited slip diff. my question is how can i go normal highway speeds with less engine rpms? Im thinking I need to do a tranny swap but i am not sure. my current set up consists of a I6 300i. with 3.73 gears. 2 wheel drive. eddie baure edition. any help would be greatly appreciated.
it has been a while since i have posted i hope all is well. here is the deal. i replaced my 2.73 gears with 3.73 gears with a limited slip diff. my question is how can i go normal highway speeds with less engine rpms? Im thinking I need to do a tranny swap but i am not sure. my current set up consists of a I6 300i. with 3.73 gears. 2 wheel drive. eddie baure edition. any help would be greatly appreciated.
Cargo Master
Joined: Jan 2004
Posts: 3,118
Likes: 149
From: South Dakota
Any transmission that would have come in a 1996 would have an overdrive, I think, with roughly 0.80 gearing. The only transmission that would help would be a 6 speed double overdrive, some odd thing I read about with a separate clutch housing. If you wanted slower engine RPMs you defeated your purpose with that gearing.
Mountain Pass
Joined: Sep 2009
Posts: 238
Likes: 14
hello gentlemen,
it has been a while since i have posted i hope all is well. here is the deal. i replaced my 2.73 gears with 3.73 gears with a limited slip diff. my question is how can i go normal highway speeds with less engine rpms? Im thinking I need to do a tranny swap but i am not sure. my current set up consists of a I6 300i. with 3.73 gears. 2 wheel drive. eddie baure edition. any help would be greatly appreciated.
it has been a while since i have posted i hope all is well. here is the deal. i replaced my 2.73 gears with 3.73 gears with a limited slip diff. my question is how can i go normal highway speeds with less engine rpms? Im thinking I need to do a tranny swap but i am not sure. my current set up consists of a I6 300i. with 3.73 gears. 2 wheel drive. eddie baure edition. any help would be greatly appreciated.
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Junior User
Joined: Feb 2011
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There were f350 that came with the I6. No way they were turning the same rpms that my f150 is now turning. It’s got to have something to do with the tranny. I can’t think of any other explanation. I currently have the Mazda transmission. Engine is screaming at 55mph. I can’t tell you guys the exact rpms as I do not have a tach.
Tuned
Joined: Jun 2011
Posts: 355
Likes: 1
From: CNY
Going from 2.73 to 3.73 would increase your RPMs. Going back to a numerically lower rear end would lower your RPM’s. Any transmission for the I6 w/OD is going to have roughly the same OD ratio.
At 55 with stock tires your setup should be around 1900-2000 rpm. Is it possible that your rear end is geared higher than you think?
At 55 with stock tires your setup should be around 1900-2000 rpm. Is it possible that your rear end is geared higher than you think?
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