Gladiator J100 -
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Unread 11-13-2009, 10:54 AM   #1
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1994 YJ Wrangler 
Join Date: Oct 2009
Location: grants pass or
Posts: 57
Gladiator J100

Ive got a buddy that will give me a set of Gladiator J100 axels. Does anyone have any information on these. I know they are the same bolt pattern as a YJ but i dont know how wide, and front diff, if its driver or passanger side drop. I searched and couldnt find any info on them.

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Unread 11-13-2009, 02:56 PM   #2
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1974 CJ5 
Join Date: Jan 2009
Location: Lorton, Virginia
Posts: 2,911
You couldn't find any info because it doesn't exist. There's no such thing as a Gladiator J100. The later Jeep trucks dropped the Gladiator name and used the J10 and J20 designation (half and 3/4 ton). If it's a 74-86 version it's probably a J10, which has Dana 44 front and usually Dana 44 rears, but some 80's versions used an AMC20 rear. Not the same AMC20 used in CJ's, the J-truck version has one piece axles and a stronger housing. 74-79 will be Dana 44's with a passenger's side front offset. The rears may be offset if they came with the Quadratrac case. All J-truck axles are extremely wide for use in a YJ, around 67" wide at the WMS.

If it's a 73 or earlier model you don't want the axles, they are closed knuckle fronts and not worth the swap.

No J-truck ever used a bolt patter that is the same as a YJ, by the way. If they're 74 and newer they will be 6-lug. 73 and earlier would be 5x5.5", same as CJ's.

By the way, there was a J100, but it wasn't a Gladiator truck. It was a panel delivery truck, which was essentially a 2 door Wagoneer with no side windows and a barn door rear door. They are very rare and it's highly doubtful that this is what your buddy has.
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