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GM Standard IFS Trucks & SUV's All discussion of full sized IFS Trucks, SUV's to include Suburban

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post #1 of (permalink) Old 02-21-2004, 08:14 PM
alvaro3jr
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ifs ?\'s

what exactly is so weak about the chevy ifs. the half shafts?...the diff itself? I am not planning to do any hardcore rockcrawling with my burban. Can I bolt on a 3/4 ton or 1 ton diff and half shafts to my existing setup or are the bolt patterns different?

I am mostly into sand and baja and stuff and for that I have an old vw that I am trying to build. Basically I want the suburban as a recovery vehicle that I can have a least a little bit of fun with. What fun is a recovery vehicle if you can't get where you need to go.
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post #2 of (permalink) Old 02-21-2004, 08:27 PM
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Re: ifs ?\'s

3/4 and 1t diff or shafts do not fit on the 1/2t. mounting points are different...8 bolt pattern stuff dont fiton 6 bolt pattern stuff.
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post #3 of (permalink) Old 02-21-2004, 08:29 PM
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Re: ifs ?\'s

what about he 6 bolt 3/4 ton stuff...or is it the same as the 1/2 ton?
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post #4 of (permalink) Old 02-21-2004, 08:30 PM
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Re: ifs ?\'s

well, 6 = 6, no`?
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post #5 of (permalink) Old 02-22-2004, 02:16 AM
 
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Re: ifs ?\'s

Considering your "beater" is going to be the VW, you don't have to worry too much about the IFS breaking unless you do something really, really, stupid.

I've done desert and Baja race courses and beaches in both my S10 (with the famous weak 10 bolts) and my K1500 and have never had problems, and that includes pulling others out of stucks (like a C3500 with a rack on top pulling a trailer with a jet ski on it; it was pretty)...

You'd have to seriously wrap something up to hurt it.
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post #6 of (permalink) Old 02-22-2004, 07:36 AM
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Re: ifs ?\'s

6 lug 3/4 front ends are the same as the 1/2 ton frons.

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post #7 of (permalink) Old 02-22-2004, 06:33 PM
 
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Re: ifs ?\'s

Why don't you just get a 3/4 ton burban? It has the 8 lug 3/4 - 1 ton IFS in front already.

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post #8 of (permalink) Old 02-22-2004, 06:40 PM
 
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Re: ifs ?\'s

Yeah, i second Jason's idea. Not only do you get the strong IFS, you get the stronger tranny/tcase (i think its a different tcase, rite?) plus the 14 bolt rear end. In my mind the 1/2 ton trucks aren't really up to much off-roading. I'd have a lot more piece of mind with a 3/4 ton. And you CAN get a 3/4 ton with the 350, you don't have to get a 454 or the TD, if mileage is an issue.
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post #9 of (permalink) Old 02-22-2004, 06:41 PM
 
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Re: ifs ?\'s

NP241 is used in 1/2 all the way through 1T
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post #10 of (permalink) Old 02-22-2004, 06:54 PM
 
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Re: ifs ?\'s

BW4401 is in my truck d00d.

Way stronger than the 241. 32 spline throughout and the chain is about half again wider.

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