HI My F-250 super duty has a bump thump when i stop if i release the the brake it goes thump bump? does not do this if i put it neutreal.Seems to do this in Acerlation from a stop, shifting goes bump sometimes, When hitting rough roads does not seem there bump thump suspension issues??Already greased the drive spline joint the same, checked if there is anything loose nope, checked spare tire secure , 75,000 miles stock shocks?? something in the transfer case?? the rear end just had the seals replaced??? Trany is secure??
Any suggestions??

Thanks
Gil

 

Check your calipers or pads for falling apart...Bolts all four each caliper.

 

Nope brakes all tight and secure it feels drive shaft trannie ??

Thanks

Gil

 

This is common. The slip yoke on the driveshaft needs to be lubed. Use the blue slip yoke grease from Ford, it will last longer than anything else you can put in there.

 

Hi Mark

Thanks for your reply but I just greased the slip yoke still the same When I first start to drive no thump Bump As things heat up about five miles it starts ??

Thanks Gil

 

Check all the rubber bushings in the springs, track bars, trans mounts, carrier bearing, and u-joints...

 

https://www.ford-trucks.com/forums/1...=droldsmorland

Follow the above thread.

Its asked on a daily basis.

Admins how can we get this in to the tech section?

I can pull it out and clean it up if youd like before its insert into a folder????

 

Hi All

I took the spline apart again, cleaned very well with Brake Cleaner re greases it with Synthetic grease! the last grease had no teflon, or PETF just Moly.

The Thump Bump is gone for now

Thanks for all your help Is this a recall issue ??

Gil

 

This will never be a recall issue. Recalls are only done for two reasons: Either safety or emissions. This is neither, it's just annoying.

 

almost sounds like politicians ....recalls are either for safety because they are mentally challenged, or emissions as in all hot air, but not because they are simply annoying sure wish we could change that

 

I tried Mobil 1 grease and it didn't work for me. Did it again with the Ford Teflon grease, silky smooth for 15K+ miles. Traded it for the current SD had to do it too with only 38K on the clock. Same results.

 

Anybody happen to have a picture of where I need to put the grease?? Thanks

 

It is politicians. Recalls are only for safety or emissions because of federal law.

 

[QUOTE=Eatonpcat;14580063]Anybody happen to have a picture of where I need to put the grease?? Thanks[/QUOTE

Under the boot. Once the drive shaft is removed from the truck you need to remove the Oetiker clamp on the boot. I remove the one towards the rear. The grease is then spread around on the splines. After you clean them of course. Fill the female yoke with the remaining grease. Use the whole tube of ford grease. Put the two halves back together and re crimp the clamp. The splines are keyed. You will have to push hard to squease the grease out of the female cavity to fully seat the two halves and to allow the boot to arrive in the right place to allow the clamp to clamp. Mark the shaft on both flanges prior to removal to insure its installed exactly where it was when removed. Please read the link as it explains more.

FYI Ford will have the boot kit with 2 Oetiker clamps for about $50 if you need to go that route. But you will still need the correct Oetiker pinch pliers with the green handles. Google it.

 

Here's a couple of pics from last year on mine.