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02-22-2006, 02:04 AM
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Hummer Authority
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Join Date: Nov 2005
Location: Atlanta GA
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Is it true than our stock front diff is a dana 60 unit? I kind of doubt it but someone told me that. If not who makes it and how big is the ring gear in there? Is it a 3/4 ton unit or a one ton? I tried search, all i got was stuff about adding front lockers. Also what gear ratios are availaible or are all h2's the same ratio?
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00 H1 opentop (HMCO) Red/Tan, 6.5 Turbo Diesel, CTIS, 37x12.50 Cooper STT's
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02-22-2006, 02:04 AM
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Hummer Authority
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Join Date: Nov 2005
Location: Atlanta GA
Posts: 1,403
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Is it true than our stock front diff is a dana 60 unit? I kind of doubt it but someone told me that. If not who makes it and how big is the ring gear in there? Is it a 3/4 ton unit or a one ton? I tried search, all i got was stuff about adding front lockers. Also what gear ratios are availaible or are all h2's the same ratio?
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00 H1 opentop (HMCO) Red/Tan, 6.5 Turbo Diesel, CTIS, 37x12.50 Cooper STT's
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02-22-2006, 02:06 AM
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Hummer Authority
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Yeah he said it was "the dana 60 IFS differential". I called him out as BS ing but, I didnt know what we really do have.
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00 H1 opentop (HMCO) Red/Tan, 6.5 Turbo Diesel, CTIS, 37x12.50 Cooper STT's
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02-22-2006, 12:06 PM
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Hummer Professional
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Location: Arizona
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When I ordered my front locking dif from Eaton I ordered one ton suburban front dif.
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02-22-2006, 12:21 PM
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Join Date: May 2003
Posts: 38
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GM parts bin 2500 or 3500 chevy truck front IFS that has a 8.25" ring gear. And yes, all the H2's to '06 are 4.10's.
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I wheel Hummers for a living...
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02-22-2006, 03:11 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by instructor:
GM parts bin 2500 or 3500 chevy truck front IFS that has a 8.25" ring gear. And yes, all the H2's to '06 are 4.10's. </div></BLOCKQUOTE>Sorry, but the H2 employs a 9.25" 12 bolt ring mated to a 1.876" diameter 30 spline pinion
The rear is a 9.5" 12 bolt ring utilizing the same pinion, I think.
To my knowledge, no other GM vehicles uses the 9.25" with an IFS.
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02-22-2006, 03:14 PM
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Seems like a Dana 60 is like a 9.75" 12 bolt ring and, of course, only in solid axle form.
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02-22-2006, 04:34 PM
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Now that you say that, seems like I remember people trying to find/wanting 4wd duallys that had the 9.25" instead of the 8.5" but I'm not sure which was prevalent.
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02-22-2006, 04:39 PM
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Join Date: May 2003
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by PARAGON:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by instructor:
GM parts bin 2500 or 3500 chevy truck front IFS that has a 8.25" ring gear. And yes, all the H2's to '06 are 4.10's. </div></BLOCKQUOTE>Sorry, but the H2 employs a 9.25" 12 bolt ring mated to a 1.876" diameter 30 spline pinion
The rear is a 9.5" 12 bolt ring utilizing the same pinion, I think.
To my knowledge, no other GM vehicles uses the 9.25" with an IFS. </div></BLOCKQUOTE>
Oops, that 8.25 is for the 6 lug GM stuff. The 9.25" IFS has been the same since GM changed from a solid axle up front in the 2500-3500 trucks.
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02-22-2006, 05:01 PM
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8.25" was used all the way up to 3500 one ton duallys up to a few years ago that I know of, they may still stick them in some versions.
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02-22-2006, 07:08 PM
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Hummer Professional
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Location: La Porte,TX
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> Rear is definitely 1.876" 30 spline, my size chart shows the front as 1.438" 30 spline, but that maybe wrong as that is the same size as the 8.875" RG pinion.
</div></BLOCKQUOTE>
My info. shows same for front and rear Phil. 00457108 P/G inner; 09417781 P/G outer; 11505123 Brg, Diff 2ea. However it does list different yoke kits: 12479139 rear; 12479137 front.
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02-22-2006, 07:35 PM
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Hummer Professional
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Join Date: Nov 2002
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by PhilD:
As a side note some Rockwell 2 1/2 top loaders would be much better  </div></BLOCKQUOTE>
Yeah, Iv'e been daydreaming about some high pinion dana 60s.  |
02-22-2006, 08:27 PM
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Banned
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by PhilD:
As a side note some Rockwell 2 1/2 top loaders would be much better </div></BLOCKQUOTE>with planetary gear hubs at each end |
02-22-2006, 11:39 PM
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Hummer Authority
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Join Date: Nov 2005
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Who makes the front 9.25" diff? AAM like the rear or somebody else? And is the rear the same as those in 2500/3500 except for the eaton e locker?
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00 H1 opentop (HMCO) Red/Tan, 6.5 Turbo Diesel, CTIS, 37x12.50 Cooper STT's
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