Major Newb ? About Gear Strength - Pirate4x4.Com : 4x4 and Off-Road Forum

BIG DUB · 08-15-2006, 12:40 PM

( Flame suit on )
Not sure but shouldn't a Dana 60 gear set be able to handle a driveshaft u-joint breaking under very little throttle with a 4.0L?
Running 5.38 Reverse thick gears in the rear diff and seem to have chipped the pinion.
Yukon gears if that matters. only ones I could find that made 5.38 reverse thick.

HalfFastFord · 08-15-2006, 12:49 PM

keep in mind there was a sudden change in speed between 2 moving parts, something gave. If you've only chipped the pinion a little, I wouldn't worry about it. Just stick it back together and run it. However, more than a little damage may call for a part replacement.

welndmn · 08-16-2006, 08:25 AM

most likely a setup issue.

BIG DUB · 08-16-2006, 10:41 AM

Quote:

Originally Posted by welndmn

most likely a setup issue.

When I set up these gears I spent alot of time. I made sure the pattern was perfect and had one of the best guys in town come to my house to check them out. They ran very quiet and had no problems even driving 1200 miles to Moab where I then broke the u-joint on Double Whammy.

ZUK · 08-16-2006, 03:30 PM

Quote:

Originally Posted by BIG DUB

When I set up these gears I spent alot of time. I made sure the pattern was perfect and had one of the best guys in town come to my house to check them out. They ran very quiet and had no problems even driving 1200 miles to Moab where I then broke the u-joint on Double Whammy.

cool on the pattern...... what about the rest of the install?

BIG DUB · 08-17-2006, 12:28 AM

Quote:

Originally Posted by ZUK

cool on the pattern...... what about the rest of the install?

Dunno, backlash was good, pinion preload was good. Everything seemed to be on the money.

Just thought maybe there was something else. When I called my local supllier he contacted Yukon and said they had a couple sets recently that did the same but not sure what gear sets those were.
Oh well.
Thanks for the input guys.

08-15-2006, 12:40 PM	#1 (permalink)
BIG DUB Registered User Join Date: Feb 2004 Member # 26905 Location: Edmonton, Canada Posts: 67	Major Newb ? About Gear Strength ( Flame suit on ) Not sure but shouldn't a Dana 60 gear set be able to handle a driveshaft u-joint breaking under very little throttle with a 4.0L? Running 5.38 Reverse thick gears in the rear diff and seem to have chipped the pinion. Yukon gears if that matters. only ones I could find that made 5.38 reverse thick.

08-16-2006, 08:25 AM	#3 (permalink)
welndmn Well Done Man! Join Date: Mar 2000 Member # 398 Location: Bay Area, CA Posts: 17,434 Blog Entries: 3	most likely a setup issue. __________________ Mark 71 Bronco. 42's and bolt on goats. 47' CJ2a, 302, C4, 33's. 2012, year of the flat fender.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

08-15-2006, 12:49 PM	#2 (permalink)
HalfFastFord Registered User Join Date: Mar 2003 Member # 17904 Location: OKC Posts: 2,382	keep in mind there was a sudden change in speed between 2 moving parts, something gave. If you've only chipped the pinion a little, I wouldn't worry about it. Just stick it back together and run it. However, more than a little damage may call for a part replacement.