Clunk in front after lift?

jorge.alves.5015

Test Drive
Location
New York
I lifted my truck about 16,000 miles ago. I'd do rough country 2.5 inch in the front and 1.5 in the back. When the wheels drop in the front say coming off a driveway or hitting a pot hole I hear a clunk in the front. Depending how fast they drop the volume of the clunk is different. What is it and is it a major issue?

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Slasa

Lockers Installed
Location
Denver
Deeb is probably right. Pics will help, particularly with it drooped.
I swear 2nd gens just start clunking for no reason sometimes.
 

thecoalition

Call me Daddy
Location
Richmond, Va
Probably coil bucket, but another thing to look at would be your sway bar movement up front. With the extra travel, you could actually be bottoming out your sway bay on down travel. I had a consistent issue with mine until I got extended links. It's still there at absolute max, but no where near as much as it was.

But yea...probably cbc. Another thing to check can be play in the bolts of the bottom shock mount. I know a lot of guys running radflo coilovers have had that be their issue.
 

jorge.alves.5015

Test Drive
Location
New York
Probably coil bucket, but another thing to look at would be your sway bar movement up front. With the extra travel, you could actually be bottoming out your sway bay on down travel. I had a consistent issue with mine until I got extended links. It's still there at absolute max, but no where near as much as it was.

But yea...probably cbc. Another thing to check can be play in the bolts of the bottom shock mount. I know a lot of guys running radflo coilovers have had that be their issue.
Hmm I'll have to check that out. I don't see it hitting the coil bucket. Or at least don't see evidence of it.

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jorge.alves.5015

Test Drive
Location
New York
Okay guys I investigated the problem and it's definitely the uca hitting the bucket. There's a clean cut where the uca are hitting the bucket about 1/32 of an inch deep. What uca would you recommend to fix this? They have to be longer correct? Sorry I'm new to this. I've had the lift on the truck for almost a year now like this.

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njnewb

Test Drive
Location
US
I have the same issue in my 06 xterra, new upper control arms will do the trick

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General_Tarfun

Sliders
Location
Atlanta, GA
Okay guys I investigated the problem and it's definitely the uca hitting the bucket. There's a clean cut where the uca are hitting the bucket about 1/32 of an inch deep. What uca would you recommend to fix this? They have to be longer correct? Sorry I'm new to this. I've had the lift on the truck for almost a year now like this.

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There are a few options but most people seem to go with the SPC balljoint upper control arms, PRG sells them and Rocauto sells the Mevotech version which is basically the same thing that also comes with SPC balljoints. One thing to look out for there is recently I've noticed the are shipping a lot of them with one newer design balljoint and one older (non-zerk type).

I don't know if they're longer necessarily but they are a tube design that doesn't take up as much space. You'll still need to grind down the edges of the coil buckets though to avoid any contact. Here's a side by side from back when I installed mine:
jL7DFOC.jpg
 
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KC!

Bought an X
There are a few options but most people seem to go with the SPC balljoint upper control arms, PRG sells them and Rocauto sells the Mevotech version which is basically the same thing that also comes with SPC balljoints. One thing to look out for there is recently I've noticed the are shipping a lot of them with one newer design balljoint and one older (non-zerk type).

I don't know if they're longer necessarily but they are a tube design that doesn't take up as much space. You'll still need to grind down the edges of the coil buckets though to avoid any contact. Here's a side by side from back when I installed mine:
jL7DFOC.jpg

I talked to SPC the other day and the vendor they recommend to purchase from with the upgraded greasable ball joints and the “special” isolated x-axis bushings is Summit Racing. I may part together a 2.5” mild lift but we’ll see haha
 

Taylor Spaulding

Bought an X
Location
Vacaville, CA
My first guess is coil bucket contact, but one of the 2nd Gen guys may have a better idea

100% bucket contact. I have the same setup. You have 4 options from cheapest to most expensive:

1. Go slower over bumps
2. Grind off the portion of the bucket that is contacting (it's a small lip you can grind down without issue.
3. Install skinny bumpstops (these don't fix the problem but will at least deaden the impact noise ...but they reduce travel slightly)
4. New Upper Control Arms: some aftermarket UCAs will "slide around" the bucket rather than hit the top.
 
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