Axle Rap Rearend Clunk

[saca93]

I Have An 04 F350 Crewcab Fx4 And If I Hit My Brakes It Makes A Clunk Noise And When I Leave From A Stop It Clunks Agian I Look At It And Eveything It Tight But The Rearend Seems To Have Alot Of Movement Anyone Had Orhave This Problem And What Did You Have To Do To Fix It

[lilredpowerstroke]

My moms 01 dually does the same thing and she has had it in a couple of times for it and they say everything is fine. The funniest or stooopidest excuses were it has too much torque. If you ever find out a fix keep us posted so she can get her truck fixed.

[F-350MAN]

mine does the same thing when I stop it feels like it kind of bumps a little,but when I take off it does it a little harder but always has, and my friends 99 250 does it . I was wondering why too. but when I'm under load it doesn't do it at all.

[saca93]

I Think I Found The Problem, I Found A Froum That Says That If You Lude The Splins In The Rear Driveshaft It Will Go Away Just Look Up Rear END CLUNK And You Sound Find It

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Last edited by saca93 : 06-27-2007 at 06:11 AM.

[saca93]

08-13-2006, 09:00 AM
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Are you noticing the thud or clunk sometimes when you come to a stop as well? If so, sounds like it's definitely a spline grease job. Common problem with super duty trucks. You'll need to drop the rear shaft of the 2 piece driveline. Yes, make sure you mark both the shaft and somewhere on the rear differential so you can line it up correctly when you re-install it. Ford sells a teflon spline grease for this application, but unless you want to spend $37 for a pint of grease, go to your local parts store and buy some slick 50 gl1 rated grease for $6. If you're careful you can reuse the rear clamp on the rubber boot. You only need to take the rear clamp apart and slide the rear shaft off. Grease the splines and put a dab into the female portion of the front piece. Put her all back together and enjoy thud free driving.


HOPE THIS WIIL HELP IM GOING TO DO IT THIS WEEKEND

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Last edited by saca93 : 06-27-2007 at 07:10 AM.

[dustindiesel]

thanks man good info!!!!!!!!!!

[F-350MAN]

Originally Posted by saca93

08-13-2006, 09:00 AM
*******
Banned
*******s Gallery Hall


Join Date: Jul 2006
Posts: 273

Are you noticing the thud or clunk sometimes when you come to a stop as well? If so, sounds like it's definitely a spline grease job. Common problem with super duty trucks. You'll need to drop the rear shaft of the 2 piece driveline. Yes, make sure you mark both the shaft and somewhere on the rear differential so you can line it up correctly when you re-install it. Ford sells a teflon spline grease for this application, but unless you want to spend $37 for a pint of grease, go to your local parts store and buy some slick 50 gl1 rated grease for $6. If you're careful you can reuse the rear clamp on the rubber boot. You only need to take the rear clamp apart and slide the rear shaft off. Grease the splines and put a dab into the female portion of the front piece. Put her all back together and enjoy thud free driving.


HOPE THIS WIIL HELP IM GOING TO DO IT THIS WEEKEND

thanks saca good info I'll do it too and post when done. you post too and tell us if it makes a differance

[saca93]

did anyone do this yet? i didn't get a chance to yet

[rednek01]

WOW I have wondered what that was from day one! I will be doing that to 2 trucks this weekend and will let yall know if anything good or bad happens. It makes sense tho because its basically bolted to the cab floor so thats why we feel it big time.

[saca93]

i did it friday and its like a new truck