Dreaded "thump/clunk"

chris4x4 · Apr 3, 2009

SRFIVE said: ↑

Question: If grease is helping, then doesn't that means you are putting compression in the driveshaft - basically just pumping it up with grease and preventing axle wrap by putting all those forces into the transmission...and rear end? I realize it will work, you can actually lift the rear end of the truck by pumping up that middle alemite fitting of the driveshaft just stopped because I didn't think it was a good idea?
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X2. One of the reasons I dont recomend this route to eliminate axel wrap. Personally, I prefer a little bit of axel wrap. Lets me know my rear leafs can still flex.

Robbsolid · Apr 6, 2009

so, anybody know what the "BD" stamped on the bottom of my springs could mean?

Robbsolid · Apr 17, 2009

bump

SRFIVE · Apr 17, 2009

johnv said: ↑

What???????^ Trust me all Gen1 Tacomas Old,New,right out of the factory have the Axle Wrap/Thunk dilema it was not until I starting using Amsoils #2 Grease to lube my driveshafts front&rear that it completely eliminated the problem COMPLETELY!! go figure just trying this Grease would stop the thunk,its a lot cheaper than driving yourself MAD replacing springs and other components that are probably OK,but if it makes you feel better to spend a ton of money to replace them parts go for it Ill stick with the grease it works and alot more cost effective my names Johnv
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Sorry, can't picture grease alone helping axle wrap??????????????????
And regardless, grease DID NOT help my "thunk".

humanoid · Apr 18, 2009

The thump is not always caused by not enough grease in the driveshaft, u-joints etc. Worn leaf springs are the main culprit in causing the clunk or axle wrap that most are experiencing.

black98 · Jul 7, 2009

I have the same irritating problem. I guess it could not hurt to try both using grease and adding the add a leaf. However, it's strange that both seem to help the problem. Is this possible or is there only one solution?

98tacoma27 · Jul 7, 2009

black98 said: ↑

I have the same irritating problem. I guess it could not help to try using grease and adding the add a leaf. However, it's strange that both seem to help the problem. Is this possible or is there only one solution?
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Adding a leaf will resolve the issue.

XBrown · Jul 7, 2009

Center support bearing. Keeps the center of the driveshaft from flopping around at speed.

black98 · Jul 7, 2009

XBrown said: ↑

Center support bearing. Keeps the center of the driveshaft from flopping around at speed.
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Lol! OK I will look into a new CSB as well. If the clunk comes back, I will really find the cause

98tacoma27 · Aug 6, 2009

johnv said: ↑

What???????^ Trust me all Gen1 Tacomas Old,New,right out of the factory have the Axle Wrap/Thunk dilema it was not until I starting using Amsoils #2 Grease to lube my driveshafts front&rear that it completely eliminated the problem COMPLETELY!! go figure just trying this Grease would stop the thunk,its a lot cheaper than driving yourself MAD replacing springs and other components that are probably OK,but if it makes you feel better to spend a ton of money to replace them parts go for it Ill stick with the grease it works and alot more cost effective my names Johnv
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My first gen didn't

Snyperx said: ↑

Glad I found this thread. My 20005 just started making the clunk here in the last couple months. I wondering if the the u-bolt flip kit I put on is contributing to the issue. So what actually resolves the clunk.....the right way? Can I install shims with the flip kit installed?
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Stiffer leaf spring(s).

ChrisYoTaCoMa · Aug 6, 2009

Mine went away completely when I replaced the leafs and put in a set of Skyjacker AAL's... And the clunk has not returned.

x2468 · Jun 28, 2010

hardtaco said: ↑

Don't sweat the bump / clunk deal. Most (if not all) the first gens do it at some point. I thought my tranny was screwed up at first. It felt like it wasn't kicking back down into first gear until after I let my foot off the brake at a stop light, then I feel the "bump". Oh well.
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I get that too. I also get a noticebale clunk every nmow and again when I put it into Drive. Anyone else get that one? I also get a weird vibing sound from the front of the center console through the floor boards. Sounds like a faint gattling gun out of ammunition. Only at certain RPM though.

x2468 · Jun 28, 2010

AFBombdude[OP] initial post: ↑

I had the dreaded thump when stopping or just after I had let off the brakes. Felt like the tranny had dropped and my gear shift (auto) would move around alot. I crawled under the truck and lubed the slip yoke and u-joints. Clunk GONE! It was driving me nuts!!

You should have seen the crap that came out of the joints/yoke as the new lube pushed out the old stuff.

I hope this is not a band aide fix for another problem so I am gunna keep my eye on it. But, it's gone for now!!
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How would I locate the joints and yoke you lubed?

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Dreaded "thump/clunk"

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#81
chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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Robbsolid Zombie Killer

#83
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humanoid bite me

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98tacoma27 is going full "SANDWICH" Moderator

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