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Yeeeee Haaaaw!
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6,801 Posts
Discussion Starter · #1 ·
I know that this is going to sound very Noobish, but what is the maximum size gear you can install in one of the early 90's IFS 1/2 ton front ends?

I'm throwing one of my old toys back together and have never been inside one of those things and don't have a clue how much of anything they can take... I'll be pushing about 400 HP through it and running a very small lift and 35's, so I don't want to hear about going straight axle under it. That's what I have a Jeep with 38's for:rock:. This will be mostly 2 wheel drive use in the sand, but I want the right gears in it in case I get cocky and need a little more kick in the ass.....

Thanks guys!!!!
 

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Yeeeee Haaaaw!
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6,801 Posts
Discussion Starter · #2 ·
I should probably mention that I'd like to move up to a 4.56 ratio, but not sure how far I can go with this thing......
 

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Yankabilly
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7,944 Posts
I believe 4.56's is the max. I know a few years back I tired to find 4.88's and they were not released yet.
 

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Yeeeee Haaaaw!
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6,801 Posts
Discussion Starter · #4 ·
Cool- thanks,
After a little more research, it looks like you can get up to a 5.13 in there now- just in case anyone else is wondering....
 
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