No power and No mileage. Im on 33's right now and feels good thinking bout 35's though not sure how it be with them 
what gear ratio?
Logistics Pro
Joined: Jan 2005
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From: Brandon, MB
I've got 36's on the rear (2WD for now) with 3.55's. Mind you, mine's a 5 speed. No problems with shortage of power. Increases your top speed and gives (I hear 
) better mileage too! 2nd and 3rd are totally awesome gears!
) better mileage too! 2nd and 3rd are totally awesome gears!
Lead Driver
Joined: May 2007
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From: Belair md
to be technical, running a 35 inch tall tire requires 4.56 gears to give you "stock" performance feel, however i run 4.10's without any cause for concern. tows great, pulls fine, cruises excellent. 3.55's would be a bit high in my opinion.
Logistics Pro
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From: Brandon, MB
I've heard that about running 3.55's and big tires with the autos. Never had any trouble pulling trailer and boat with loaded truck with my setup though. I had 33's on last winter. That was OK, but Like the taller ones myself. Again, it totally depends on how you are going to use it. If you're pulling 14K or more or doing serious offroading, the lower gearing would be a better idea.
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Elder User
Joined: Jun 2006
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My friend had a 94 F250 with 39.5's. He was runnin the stock 3.55's, if I were him I woulda regeared but I drove it once and it wasn't as bad as I thought it would be. It was a 5 spd though.
I run 38's wtih 4.10's. No complaints, no problems. Im not a hardcore wheeler and I don't run my truck hard though.
I run 38's wtih 4.10's. No complaints, no problems. Im not a hardcore wheeler and I don't run my truck hard though.
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From: Ft Scott
Not according to the calculator I use.
4.10's and 35"s give an effective ration of 3.76