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The 14-Bolt Portal & Sixty-9 Exclusive

Ground Breakers

By Fred Williams

Two axle products have come to market recently that open up options for custom axle builders and four-wheelers alike. Innovations like these increase ground clearance, reduce weight, and improve gearing to run larger tires, all priorities when building your next off-road machine.

We didn't get to personally test these two items, but still wanted to let you know they are coming soon.

The Sixty-9 differential carrier is a cast 8620 steel dropout that fits Dana 60 gears and lockers and is made in the USA. What really sets it apart is the fact that it can be set up as either a high-pinion or a low-pinion if you use the proper gears. This is done with a removable pinion mount that can be flipped over yet still aligns the pinion with the ring gear.
The Sixty-9 differential carrier is a cast 8620 steel dropout that fits Dana 60 gears and

The Sixty-9
JRat Off-Road recently revealed its developmental Sixty-9 axle. This unit is a dropout axle like a Ford 9-inch, but the differential carrier houses Dana 60 gears and lockers. We like dropout axles for many reasons, including ease of service (gears and lockers can be set up on a bench or at a local shop without the whole axle), lighter weight (we don't have definite weight numbers on this unit versus a stock Dana 60), and the ability to fabricate bracket, trusses, and steering/suspension mounting points to the steel outer housing. These axles are going through final development as we go to press, and you can find out more at JRat Off-Road.

  • By using special bronze bearing side bearing adjusters, there is less chance of galling and ease of assembly. Casting the differential carrier in cast steel means that it should be two times as strong as a nodular iron center section.
    By using special bronze bearing side bearing adjusters, there is less chance of galling an
  • The Sixty-9 fabricated axlehousing claims 3/4 inch more ground clearance than current Dana-60s, a big difference when you're crawling over diff-grabbing boulders. The housings can be built as either steering or straight drive axles.
    The Sixty-9 fabricated axlehousing claims 3/4 inch more ground clearance than current Dana
  • The six Allen-head bolts on the front of the dropout are what support the pinion and allow it to be swapped from low- to high-pinion. This makes the investment twofold, as you can build a low-pinion rear axle and then change it to high-pinion down the road or vice versa if your needs and four-wheeling rig change.
    The six Allen-head bolts on the front of the dropout are what support the pinion and allow

The 14-Bolt Portal
About a year ago we showed you the AxleTech International Motorsports bolt-on portal boxes ("Lift-N-Gears," Aug. '09), but at the time they were only available for the kingpin Dana 60. Recently AxleTech installed the first set on a Corporate 14-bolt rear axle. Now all you wheelers with a 60/14 bolt combo on your trail (or daily driver) truck can step up to 5 more inches of ground clearance and lower gearing all at once.

The big stepping stone with the 14-bolt rear axle is the spindle that supports the full-floating hub. To make the portal boxes work, this spindle is cut off. This makes the upgrade less likely to be reversed if you decide that 5 inches of ground clearance and 11/2 times less gearing isn't for you, but we installed some portals on our buggy a year ago and now can't imagine it without them.

After the axlehousing is cut just behind the brake mounting plate the tube is then cleaned thoroughly for welding on the new 1/2-inch-thick portal mounting plate (a production 1-inch-thick plate will be used). Sorry, no bolt-on this time. Proper welding must be done to ensure that the plate is square to the axletube and securely attached.

  • The portal box is a four-gear unit with a drive gear, two idler gears, and one massive lower driven gear. This multiplies the axle gearing by 1.5, so if you have 3.73 in your axles then you'll be at 5.59 after the portal install-great gearing for 38- to 44-inch-tall tires. New custom inner axleshafts are also required with the 14-bolt installation.
    The portal box is a four-gear unit with a drive gear, two idler gears, and one massive low
  • The disc brakes and Wilwood calipers finish off the installation. The portals are currently available in eight-lug...
    The disc brakes and Wilwood calipers finish off the installation. The portals are currentl
  • ... configurations, though other wheel bolt patterns and axle applications are in the works, including various large and small balljoint axles.
    ... configurations, though other wheel bolt patterns and axle applications are in the work
SOURCES
Axletech Motorsports
N/A
AK
877-877-9717
www.motorsports.axletech.com
JRAT Off-Road
N/A
AK
719-336-3146
www.jratoffroad.com
By Fred Williams
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