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Old Jul 28, 2003 | 10:05 AM
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Rear gear change

94 2wd ranger 5sp 2.3. if i wanted to put lower rear gears in my ranger what would i need to do? would some gears out of a 90-92 4wd ranger work. am i correct in thinking they are lower?
 
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Old Jul 28, 2003 | 01:28 PM
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Rear gear change

Not necessarily. First you need to identify for us what you have in there now. Get axle codes from diff cover. Then decide what you want to go back with. Then maybe we can help.
 
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Old Jul 28, 2003 | 06:46 PM
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Rear gear change

if the gears were lower though how much work would be involved in sawpping them?
 
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Old Jul 28, 2003 | 07:15 PM
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Rear gear change

If you want to swap gears, you pull the diff. After you set the new ring and pinion on you have to set your bearing endplay, then backlash, and last you will have to make sure you have a good contact pattern. You will need a dial indicator.
 
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Old Jul 28, 2003 | 08:17 PM
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Rear gear change

i have a 1991 Ford 4X4 F-250 with the 351 and a 5 speed overdrive tranny. i have the 4.10 gearing and thought about going with the 3.73 for the gas milage, but how much power will i lose since i use the truck for hauling once in awhile?
 
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Old Jul 28, 2003 | 11:48 PM
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Rear gear change

It's the equivilant to 15 or so hp. If you've never done an axle before, don't even try it. It's very tricky and complicated. You need to watch someone do it before you can do it yourself.
 
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Old Jul 29, 2003 | 12:11 AM
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Rear gear change

Originally posted by MustangGT221
It's the equivilant to 15 or so hp. If you've never done an axle before, don't even try it. It's very tricky and complicated. You need to watch someone do it before you can do it yourself.
Just out of curiosity, how does one come up with a number like that? I can understand that a higher gear ratio would adversely affect your ET's as the time it takes to get into the powerband increases, and it would obviously effect your ability to get a heavy load moving from a dead stop.....but you're not really LOSING any hp. The engine still generates the same amount of power regardless of the gears.

Are you basing that number on the ET difference?

Just curious......
 
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Old Jul 29, 2003 | 02:19 AM
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Rear gear change

Your more or less loosing torque not horse power when going up in gears. Higher gears, HP might actually increase because the pinion gear is bigger then increasing efficiency of the rear end.
 

Last edited by c_rossman; Jul 29, 2003 at 02:22 AM.
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Old Jul 29, 2003 | 08:56 AM
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Rear gear change

That's correct, that's why I said it's equivilant to 15hp. It's based on ET's and is just something to give reference to.
 
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Old Jul 29, 2003 | 07:21 PM
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Rear gear change

would it be easier to install the axles shocks springs brakes and everything from the other truck? or will the years make any difference? how complicated would it be? in theory i would not have to add anything else to the axle right?
 
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Old Jul 30, 2003 | 08:41 AM
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Rear gear change

Originally posted by 1yamman350
would it be easier to install the axles shocks springs brakes and everything from the other truck? or will the years make any difference? how complicated would it be? in theory i would not have to add anything else to the axle right?
If you have the facilities - yes - that's what I would do.
 
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