Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

u joint trouble

Thread Tools
 
Search this Thread
 
Old Oct 1, 2013 | 10:26 PM
  #1  
winterkill's Avatar
winterkill
Thread Starter
|
Cross-Country
Joined: Jun 2013
Posts: 60
Likes: 3
u joint trouble

i broke my second u joint in a month. coming from the tranny to t-case. used a napa brand one last time, anyone have a better brand in mind? is there a difference in quality between manufacturers???
 
Reply
Old Oct 1, 2013 | 10:31 PM
  #2  
HIO Silver's Avatar
HIO Silver
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
NAPA usually sells good stuff.

What do you mean "broke"? I think you need to look at that U-joint and figure out why it "broke". Overtightened the straps??

By chance by side-stepping the clutch at 5,000 RPM?
 
Reply
Old Oct 1, 2013 | 10:49 PM
  #3  
77&79F250's Avatar
77&79F250
Moderator & parts slinger
Veteran: Army
15 Year Member
Community Builder
Liked
Joined: Feb 2007
Posts: 50,146
Likes: 5,783
From: S/W Missouri, Polk county
Club FTE Gold Member
What tire size, gears and motor and trans set up and lift size?? All that matters you know

Get a Dana Spicer gold series $$ but worth it.

GOLD SEAL Universal Joint,1350 Series Driveshaft Ujoint

Are you putting some lock tight on the hardware and lock washers on the clamps?

And you putting the correct width and diameter u joint in there in the first place?

Are you caps fully seated in the flange, under load or heavy excess go pedal release take offs are your rear springs "S" flexin and giving you a real bad pinion angle and blowing the u joint?

https://www.google.com/url?sa=t&rct=...aV6sd2chUmh-tA
 
Reply
Old Oct 2, 2013 | 06:32 AM
  #4  
jim collins's Avatar
jim collins
Cargo Master
Joined: Apr 2009
Posts: 3,038
Likes: 4
From: South west Idaho
Club FTE Silver Member

I got in a hurry once with the u-bolts with out enough light to see what i was doing. Never got the caps seated right and just as soon as i put it in gear , i heard the drive shaft beating on the shop floor. Cost me another new joint.
 
Reply
Old Oct 2, 2013 | 05:17 PM
  #5  
NW 150's Avatar
NW 150
Fleet Mechanic
Joined: Jun 2007
Posts: 1,931
Likes: 2
From: Ohio
If you're talking about the driveshaft u-joint at the t-case, check to make sure your drive shaft is "in phase". Mine wasn't last year and POP, shaking, pull over, yoke ear at the u-joint broke off. Wasn't in phase.
 
Reply
Old Oct 2, 2013 | 06:38 PM
  #6  
77&79F250's Avatar
77&79F250
Moderator & parts slinger
Veteran: Army
15 Year Member
Community Builder
Liked
Joined: Feb 2007
Posts: 50,146
Likes: 5,783
From: S/W Missouri, Polk county
Club FTE Gold Member
Here is an example of a correct phased d/s.....

Everyone agree?
 
Attached Images   
Reply
Old Oct 2, 2013 | 06:43 PM
  #7  
winterkill's Avatar
winterkill
Thread Starter
|
Cross-Country
Joined: Jun 2013
Posts: 60
Likes: 3
will check all advise!

ill look into the phasing of the driveline. im 8 days away from seeing my truck as i work outta town but i appreciate the advise. will repost then!!!
 
Reply
Old Oct 10, 2013 | 10:11 AM
  #8  
winterkill's Avatar
winterkill
Thread Starter
|
Cross-Country
Joined: Jun 2013
Posts: 60
Likes: 3
more info

Originally Posted by 77&79F250
What tire size, gears and motor and trans set up and lift size?? All that matters you know

Get a Dana Spicer gold series $$ but worth it.

GOLD SEAL Universal Joint,1350 Series Driveshaft Ujoint

Are you putting some lock tight on the hardware and lock washers on the clamps?

And you putting the correct width and diameter u joint in there in the first place?

Are you caps fully seated in the flange, under load or heavy excess go pedal release take offs are your rear springs "S" flexin and giving you a real bad pinion angle and blowing the u joint?

https://www.google.com/url?sa=t&rct=...aV6sd2chUmh-tA
ok so the second link specs match the u joint i am replacing. i still want to know why its going out. it is the ujoint behind the transmission. the angle looks non excessive... the drive shaft is in phase. should i torq the u bolts to a certain spec? the truck has a 460, with 35 inch tires. is it being overworked?
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Oct 10, 2013 | 06:28 PM
  #9  
77&79F250's Avatar
77&79F250
Moderator & parts slinger
Veteran: Army
15 Year Member
Community Builder
Liked
Joined: Feb 2007
Posts: 50,146
Likes: 5,783
From: S/W Missouri, Polk county
Club FTE Gold Member
Are you breaking the u joint caps or burning up the splines in the cap? Yes you should always torque IAW the manual.

460 and 35's.....yea its getting worked if you are hammering on it all the time. Is this a new symptom or has it always done it? Did it start after you changed something?

Are you trans and xfer case mounts/bushings good and tight? Motor mounts good?
 
Reply
Old Oct 10, 2013 | 09:14 PM
  #10  
winterkill's Avatar
winterkill
Thread Starter
|
Cross-Country
Joined: Jun 2013
Posts: 60
Likes: 3
update

Originally Posted by 77&79F250
Are you breaking the u joint caps or burning up the splines in the cap? Yes you should always torque IAW the manual.

460 and 35's.....yea its getting worked if you are hammering on it all the time. Is this a new symptom or has it always done it? Did it start after you changed something?

Are you trans and xfer case mounts/bushings good and tight? Motor mounts good?
the ujoint i just replaced looked like it had been welded, obvious sign of heat and lack of lubrication. i was researching ujoints and came across a cool youtube video on dana spicers site of the flow of grease across the channels of a ujoint. i took care to liberally grease this new one today. hoping the last failure was my fault as i had greased it till i heard popping and didnt visually see grease pushing past all 4 seals. can i just put a socket to tranny and engine mounts to check tightness or maybe run engine to watch for movement? what works for you guys on that? i torqued to 15lbs and blue loctite ed this new u joint so im hoping it lasts a while!
 
Reply
Old Oct 10, 2013 | 09:34 PM
  #11  
77&79F250's Avatar
77&79F250
Moderator & parts slinger
Veteran: Army
15 Year Member
Community Builder
Liked
Joined: Feb 2007
Posts: 50,146
Likes: 5,783
From: S/W Missouri, Polk county
Club FTE Gold Member
Are you getting u-joints with a grease zert that you have to install, or sealed ones? Sealed ones are suppose to be stronger that the ones with the internal grease channel.....

The welded look is a strong indication of NO lube or cheap u joints that has failed. Once you hard slip the clutch and damage the cap splines (needle bearings) and they quit rolling smoothly its only a matter of time.

Over torquing the caps can cause damage, correct torque and lube is a good thing.

Tight ck at the attachment hdwr and CAREFULLY use a pry bar to see if the trans mount is broken. Do you understand that statement?
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jlynch2011
1987 - 1996 F150 & Larger F-Series Trucks
3
Nov 13, 2011 03:15 PM
ErrorS
1978 - 1996 Big Bronco
4
Mar 31, 2010 01:38 AM
jstroud08
Brakes, Steering, Suspension, Tires, & Wheels
5
Mar 14, 2008 08:23 PM
fish_bulb
Clutch, Transmission, Differential, Axle & Transfer Case
3
Feb 7, 2006 01:49 AM
DouginTahoe
Explorer, Sport Trac, Mountaineer & Aviator
3
Oct 29, 2004 05:29 PM




All times are GMT -5. The time now is 05:10 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE