Bullnose Enthusiasts Forum

Vibration with hubs locked

Classic

List

Threaded

28 messages Options

ArdWrknTrk

Re: Vibration with hubs locked

Administrator

Those things had the really weird big ball joint front axle???

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

Nothing Special

Re: Vibration with hubs locked

Probably. It's called a Birfield joint. I'm pretty sure it involves a big ball. They're known for not being very strong when operating through a larger angle

Bob
Sorry, no '80 - '86 Ford trucks
"Oswald": 1997 F-250HD crew cab short box, 460, E4OD, 4.10 gears
"Pluto": 1971 Bronco, 302, NV3550 5 speed, Atlas 4.3:1 transfer case, 33" tires
"the motorhome": 2015 E-450-based 28' class C motorhome, 6.8L V-10
"the Dodge": 2007 Dodge 2500, 6.7L Cummins

ArdWrknTrk

Re: Vibration with hubs locked

Administrator

Those earlier LC had a strong following back then in southern Africa.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

nilknarf007

Re: Vibration with hubs locked

In reply to this post by ArdWrknTrk

First off, thank you to everyone that offered suggestions. Today was the first time I was able to get the truck on a lift so I could put it in gear and let the wheels turn.

I'm going to be honest, I poo-poo-ed the U-joint problem because I had already checked everything thing in the drive train and the suspension for play. There was none, so I moved on trying to find a different solution. However, getting the truck on a lift taught me that the front drive shaft is like a giant wind chime - any noise connected to it amplifies the noise and makes it hard to track down. Out of frustration, I removed the drive shaft and made a discovery that I'm sure all of you will laugh at, but was a first time for me.

Bad u-joints don't always have play in them. Sometime they just seize. That's what mine did.

Replaced, and running fine.

Maybe next time I'll listen a little better. Thanks again!

Rob F.
1985 4x4 4.9 i6 NP435, HEI distributor, smog delete, Clifford intake, twin Weber 38/38s.

mat in tn

Re: Vibration with hubs locked

glad that you found it. and yes, u joints can fail in many ways. most often from neglect. did you install greaseable units so service can be done?

Gary Lewis

Re: Vibration with hubs locked

Administrator

In reply to this post by nilknarf007

Congratulations!

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

ArdWrknTrk

Re: Vibration with hubs locked

Administrator

In reply to this post by nilknarf007

I'm glad you found the problem.

I've been driving with only the front since my knee recovered enough to work the clutch.
Those front axles will definitely bind up on dry(ish) pavement while turning.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

nilknarf007

Re: Vibration with hubs locked

Yes sir, I now have grease fittings! I will also continue my lifetime streak of never driving on pavement in 4WD.

Rob F.
1985 4x4 4.9 i6 NP435, HEI distributor, smog delete, Clifford intake, twin Weber 38/38s.