Building of a Dynatrac ProRock 80 Full-Float Rear Axle
1,751,517
Published 2014-05-28
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With more and more people building up their Jeeps JK Wranglers with 40" tires and pushing them with the kind of big horsepower that a HEMI or an LS swap will provide, there's been a real demand for an axle that can handle the abuse and Dynatrac has the answer for it -- the ProRock 80! With an 11.25" ring gear, a 2" diameter pinion, 40 spline 4340 full float shafts and all packaged in a high clearance, light weight rigid housing, there really is nothing out there that comes close to all that you'll get with this axle. In this video, you'll get to see exactly how it's made and right here in America!
All Comments (21)
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Seriously the production quality of your videos gets better with each new video! Keep up the great work!
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the precision and man hours involved in assembling is staggering. Great to see a "How its made" for jeep upgrades. Great video.
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Love all the old school machinist talent and manual assembly skill set!
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Whole lot of labor that goes into one of those. Always nice to see products that are 100% made and assembled in the USA.
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I've always appreciated the work of a machinist since both of my parents were in similar businesses...it seems like an art that is perfected over time and they absolutely make it look much easier than it really is to create out of hunks of metal, something that will work, work right and be durable and impressionable...give those folks a raise! : )
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The music after 3:45 is perfect, it was like watching an episode of How it's made! I have no idea why I'm watching this either, ruined my nap lol
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I can remember back in the early 80's asking both Dynatrac and Currie about putting a full floater 60 in the back of a 79 bronco, they both asked why would you want to do that? So I did it myself, I did a hybrid 44F (Tracloc) front 8 bolt conversion and added discs to the rear (Detroit Locker)..
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Teach me!! Let me be your protege. Beautiful work, something to be proud to stamp your name on!
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You can really see the quality of this product as its being built. One day I hope to have a couple Dynatrac's under my JK. Thanks for producing yet another great video...
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What a strong looking axle...!! Thanks for the video tour Eddy...!
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Holy mother of all axle shafts!!! Uber cool video as usual.... Number one fan here and I don't even drive a Jeep, but I do love all things four wheel drive with loose nuts behind the wheel. Anxiously awaiting your next effort.
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Great to see a wayalife vid showcasing american craftsmanship and attention to detail!
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Haha I learned something from this video, aside of how the axle is built. I had thought of using a plastic spatula to fill the hub with grease! Looks so much easier than and cleaner than using my hands..
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Rubicat was always my fave! I know she's in good hands with her new owners and looking forward to seeing her up close now that she's a regular at my playground of choice, Rausch Creek!
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sure is a beautiful thing to watch how its done with all the right tools and equipment! nice work!
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probably the best setup to run on any 4x4... overbuilt with maximum clearance i like it very much
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This is why I taught myself to setup my own axles. There is no way around the labor involved with setup......rather learn to do it myself than pay someone to spend hours setting shims, bearings and lash. Much pride from 10 years of crawling on 44's I did on my own.
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Holy crap!! Lol....I’d never break something that strong...! What a build!!
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I have never seen anyone take so much effort into there product !!!! Thanks !!!!
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Awesome video my friend. If I ever break my Dana 60 full floating axels I will step up to these.
