8 3/4 goes boom

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9 inch ford is hella strong as well.

In stock form they're not near as strong as a dana, and less efficient, and almost as heavy. For many years there were three main benefits of running a 9 inch over a dana 60: it's a dropout unit for quick gear changes, the housing can be reinforced easier, and the aftermarket has a huge assortment of high end pieces available for them.

But now there is a company called Jrat that makes a dana 60 dropout rear and fabricated housing.

https://www.facebook.com/JRAT-Offroad-268573476578417/

http://www.torqaxle.com/JRat-Offroad-Sixty9-Dropout_p_104.html

This is the axle that has changed what you expect out of any axle. This is the Sixty9 dropout Dana 60 axle. We took everything that people wanted and added in more of what was never thought possible and rolled that into one badass axle. The Sixty9 can be used as a low pinion or a high pinion and makes use of a symmetrical housing flange pattern. You can flip this over and run it upside down. What you receive is, 1 Main Body, 1 Pinion Supports, 2 Bearing Caps, 2 954 Bronze Side Adjusters, 2 Adjuster Locks, 14 3/8" Fine Thread Grade 8 Housing Bolts, 8 3/8" Grade 8 Pinion Support Bolts, 2 Adjuster Lock Bolts, 4 1/2" Grade 8 Bearing Cap Bolts.

Ships free to the Lower 48 United States

Made in the USA
Drop out design for easy service
Uses standard Dana 60 carrier, bearings, and seals
Designed for high pinion or low pinion use
Uses standard or reverse rotation Dana 60 gear sets
Requires Custom Axle Housing


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Okay guys, you've convinced me. I'm going with a Dana 60 rear end. Gotta have it narrowed, spring perches relocated, replace diff. with spool/etc.
You've made the right choice. The Dana 60 will handle anything you can throw at it. The 8 3/4 is only reliable to about 600 hp. After that, it's a crap shoot.
Good luck with the rear end conversion.
 
Excellent to hear this. Did the trans need any big work? On the rear, what's the details? Cost, equipment ... (You can nut shell it...)
Thanks and good luck.
The tranny was fine, just put in new seals and put it back together $150 parts and labor!
Moser Dana 60, Moser 35 spline spool, Moser axles, B body drum brakes, 4.56 drag racing gears, Mark Williams driveshaft.
Complete rear end shipped from Moser: $2500 ( I already had brakes)
Weld spring perches @ 3 degree angle:$100
Cut 1.5" off driveshaft and rebalance: $160
Tig weld temperature gauge bung into back of tranny pan: $15 (I found a new favorite machine shop!)
Lots of hours of labor!
 
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