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Old 04-16-2013, 02:42 PM   #1
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Join Date: Mar 2011
Location: Peoria, IL
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Best way to upgrade rear axle without breaking the bank

Right now I have a D35 in back with 3.07s. I wanna do the most cost effective and best way to upgrade my rear axle. Keep in mind I want to run 33s with 4.10 (Auto 4.0). I have never welded, so I'm not sure how I'd go about that.

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Old 04-16-2013, 02:47 PM   #2
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Old 04-16-2013, 06:57 PM   #3
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If you can weld/fabricate, an 8.8 is a good choice. Particularly if you find one with the ratio you want and can live with an OEM Trac-Lok.

But if you can't weld, or if you want to regear or change differentials anyway, then the bolt-in D44 rears that you see in catalogs and elsewhere could be a good choice, since the brackets all mirror OEM geometry, the gears/carrier are set up and ready to go, and the whole thing should be bolt-in ready.
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Old 04-16-2013, 07:07 PM   #4
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I would strongly consider the 8.8 swap. Im in the middle of building mine, but if your looking for the cheapest, most effective swap i would definitely look into an 8.8
I purchased mine for $250, and you could probably find it cheaper at a junkyard. But in the end im looking at spending a total of $1300, and thats with 4.56 gears, an LSD and the Artec truss kit. It's definitely the cheapest way you could go, but like you said welding could be an issue. Im sure for a small price you could have a shop tack and weld in the brackets for you.
1997 TJ SPORT 4.0L, Ford 8.8 locked, AX-15, 3.5" of lift, 33" BFG KM2, SYE & UCF TT, JKS disco's, Warn 9.5ti, MetalCloaks
2000 Subaru 2.5RS Stromung

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Old 04-16-2013, 08:01 PM   #5
Join Date: Mar 2013
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Craigslist..... 307... Wow... I would have been looking for an upgrade a long time ago
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Old 04-16-2013, 08:22 PM   #6
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Don't forget to regear the front if you plan to use 4x4.
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
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Old 04-16-2013, 10:56 PM   #7
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Location: Madison, AL
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Get a game plan going. If your going to do an 8.8 swap, shop craigslist and local pick and pulls for the axle. Save up again and buy the bracket kit. Save again and decide on gears and/or locker. Save again and have the brackets welded and gears set. Axle changes are not cheap, but following a plan and taking things one step at a time will keep you from going broke. While your building your axle, drive and enjoy your Jeep! Do it right the first time so you don't go broke doing it twice!
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Old 04-16-2013, 11:13 PM   #8
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Location: Peoria, IL
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Thanks alot everybody.. Thinking in a couple months of getting an 8.8 from ECGS to bolt right in. 1100 isn't bad for everything. Especially when having gears installed alone cost upwards of 600 + parts

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