Gearing question
Gearing question
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Junior User
Joined: Nov 2005
Posts: 59
Likes: 0
I have a 1996 F-150 ext cab long bed 4x4 with 6" suspension lift and 35" tires. It has 3.55 gears and now I am obviously having problems with the overdrive and highway speeds. I need some direction as far as 4.10 or 4.56.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Yep. Try this one...http://www.csgnetwork.com/multirpmcalc.html
Plug in your factory tire size, which was 28", 3.55 gears and pick 60mph for example. Now look at the engine speed for AOD. Next change the tire size to 35" and you'll see the engine speed drop. Now change the gearing until you get it to be atleast as high as it was with factory wheels.
Plug in your factory tire size, which was 28", 3.55 gears and pick 60mph for example. Now look at the engine speed for AOD. Next change the tire size to 35" and you'll see the engine speed drop. Now change the gearing until you get it to be atleast as high as it was with factory wheels.
Laughing Gas
Joined: Jul 2003
Posts: 893
Likes: 8
From: Lincoln, Nebraska
if you are going to change go with at least 4.56 if you dont do alot of interstate driving and you have a 302 i would think about 4.88.
If i ever go with a gear change i am definatly go with 4.10 but i probably going to go with 4.56 and i have 33" tires and a 302
If i ever go with a gear change i am definatly go with 4.10 but i probably going to go with 4.56 and i have 33" tires and a 302
