clunk-gone
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Joined: May 2004
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clunk-gone
I Had Originally Posted About A Clunk In The Rear End Of My 99 F150.today That Clunk Is Gone.i Had Checked Everything That I Could Think Of That Might Be Causing The Clunk.checked The Shocks,put
Leaf Spring Clamps On The Front Of The Springs To Keep Them From Moving To Much,replaced The Rear End Fluid And Put Friction Modifier,replaced The Trans Mount At The Cross Member,removed The Driveshaft And Checked The U-joints,lubed The Slip Yoke With The "best" Valvoline Synthetic Grease They Had,but Nothing Fixed It.finally I Decided To Try Ford's Special Teflon Grease And What A Difference!the Clunk Is Gone.now If It Comes Back Or Not,who Knows
Leaf Spring Clamps On The Front Of The Springs To Keep Them From Moving To Much,replaced The Rear End Fluid And Put Friction Modifier,replaced The Trans Mount At The Cross Member,removed The Driveshaft And Checked The U-joints,lubed The Slip Yoke With The "best" Valvoline Synthetic Grease They Had,but Nothing Fixed It.finally I Decided To Try Ford's Special Teflon Grease And What A Difference!the Clunk Is Gone.now If It Comes Back Or Not,who Knows
Laughing Gas
Joined: Mar 2002
Posts: 1,060
Likes: 12
From: arizona
I was probably one of the first people that started adding teflon to the yoke of my 97f150. My truck started this right after I bought it new in 97.
It only took me 5 years to figure it out and about 5 yokes replaced. I now lube it once every six months.....yours will be the same way if it's the same design. I now have gone for a couple of years without any issues.
It only took me 5 years to figure it out and about 5 yokes replaced. I now lube it once every six months.....yours will be the same way if it's the same design. I now have gone for a couple of years without any issues.
Fleet Mechanic
Joined: Aug 2004
Posts: 1,276
Likes: 7
From: NE Tennessee
So is this the driveshaft 'pushing' in some when ya accelerate and gripping the splines then suddenly giving maybe? Guess older weaker rear components letting the rear move more would make this even more prominent. I think I'll be giving this a try. Did you get this at the Ford dealer? And if ya did got a part number?
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