D60 rear strength - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 10-28-2005, 11:09 AM   #1 (permalink)
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D60 rear strength

The 60 in the rear of my Heep right now has 4:56 gears, Detroit, disks, the whole 9 yards, and Im swapin out the front HP 44 for a HP 60 and i want to run 39 iroks then mabe in the future 42 iroks, would the rear hold up to those sizes, I have a 14 bolt, but I was just trying to figure out the best route, and Im swapin in a FI 318 V8/ Auto/D300
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Old 10-28-2005, 11:17 AM   #2 (permalink)
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is it high pinion?

it should be fine, but anything can be broken
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Old 10-28-2005, 11:22 AM   #3 (permalink)
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Its low pinion
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Old 10-28-2005, 11:29 AM   #4 (permalink)
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What axle shafts are in the? If it's the 30 splines, it's time to upgrade.
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Old 10-28-2005, 11:43 AM   #5 (permalink)
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30 spline wont cut it....Broach and run 35 if ya want it to live.

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Old 10-28-2005, 12:29 PM   #6 (permalink)
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Would it be cheaper and easier to just build the 14 bolt, I was going to spool it instead of a locker this time and would 4:56 be good fo 39.5s to 42s

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Old 10-28-2005, 12:30 PM   #7 (permalink)
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And yes it is 30 splines
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Old 10-28-2005, 01:48 PM   #8 (permalink)
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Dana 60 rear, 35 spline mosers, 4.56 gears, and detroit locker. I've been running that setup for six years, several of those years under a 5000lb or more Wagoneer with a 300hp 360 and 38.5 Baja Claws. On steel wheels they weighed 140lbs each. Now I'm running 42 Iroks on a buggy with success. It'd probably be cheaper to build the 14 bolt but chevy stuff can lick my nuts so I went with the Dana 60.
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Old 10-28-2005, 02:17 PM   #9 (permalink)
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Southern, its a tough call...If you switched to 14B you would have to do gears, locker and disks all over again, if you switched your 60 to 35 spline, you could retain the disks, but your still messing with locker and gears...

If you were picking up a diff and JUST starting the build...14B all the way.

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Old 10-28-2005, 07:01 PM   #10 (permalink)
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Southern... at LKQ here in Orlando, they have some 14 bolts that they want $80 complete; or if you catch the place over in Daytona on the right day, they are $20. I went 14 bolt and my buddy and I shaved a little off the bottom with a porta-band. Lockers for the 14B are even cheap if you went that route... I had a quote from DC4wd for 5:13's, Master Install Kit, and Detroit for $600 to the door; weld it up and you come out even cheaper...

I had a choice starting from scratch (D60's still in the garage) and I went 14B because of strength -vs- cost.

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