Notices
1997 - 2006 Expedition & Navigator 1997 - 2002 and 2003 - 2006 Ford Expedition and Lincoln Navigator Discussion

03 Expe Upper Control Arm Q's

Thread Tools
 
Search this Thread
 
Old May 30, 2012 | 12:58 PM
  #1  
RedHorse1's Avatar
RedHorse1
Thread Starter
|
Senior User
15 Year Member
Joined: Jan 2006
Posts: 348
Likes: 1
03 Expe Upper Control Arm Q's

Does anybody know the sizes for the nuts on the upper control arm and a short version of how it disassembles?
Thanks in advance!
 
Reply
Old May 31, 2012 | 06:52 AM
  #2  
bumparker's Avatar
bumparker
Senior User
Joined: Jun 2005
Posts: 125
Likes: 0
I'm trying to remember but I think the nut/bolt size is 22mm where they bolt to the frame and the same on the ball joint nut. As I recall, the two main sizes were 17mm and 22mm for most of the front suspension.

The bolts to the frame do not have any type of special alignment washers and do not need to be clocked.

When I did the replacement I took the front shock and spring assembly out too, there is a very large nut on the bottom (32mm I think) that has to be removed, the top nuts are 15mm as I recall. I think you can replace the top control arm without removing everything but I did not do it that way.

I used RockAuto for the parts and got the Raybestos Professional control arms and everything fit without issue.
 
Reply
Old May 31, 2012 | 07:05 AM
  #3  
bumparker's Avatar
bumparker
Senior User
Joined: Jun 2005
Posts: 125
Likes: 0
Oops, for disassembly (same for each side):
1. Remove wheel
2. Remove brake caliber and hang to the side
3. Remove wheel hub (unplug antilock brake sensor wire)
4. Remove front wheel knuckle (use a jack to support)

Now you'll have full access to the upper/lower control arms, shock and spring assembly and sway bar end links. There are two bolts that hold the upper to the frame (bushings) and one that holds the ball joint to the knuckle. What you see is what you get, no surprises. If the shaft on the ball joint just spins when you are trying to loosen, the end of the shaft is manufactured to allow you to hold stationary with a wrench while loosening. The only other issue is the sway bar end links, they are tough to get out of the lower control arm but you won't have to remove to do the upper.

With the right tools and a little planning you should be able to do a side in about an hour. Make sure you have a good size breaker bar. You'll need both sockets and a closed/open end wrench to loosen the bolts through the bushings and you'll need an alignment afterwards.
 
Reply
Old May 31, 2012 | 08:25 AM
  #4  
RedHorse1's Avatar
RedHorse1
Thread Starter
|
Senior User
15 Year Member
Joined: Jan 2006
Posts: 348
Likes: 1
Thanks Bump!
I re-read my original post and see I forgot to note that it a 2WD.
I did the front shocks a few weeks ago and noticed the rubber boots on both upper BJ's were shot. I've got the replacements from RockAuto sitting on the bench and plan to tackle this weekend.
While doing the shocks I took a look and figure I can get the UCA's off without any additional disassembly as long as I take care to support the hub-knuckle.
The front tires need replacing so I'll drive to the tire shop on the old ones get some new "Monkey Pads" and the allignment.
I didn't think to check the socket sizes while I was under there and was hoping someone could remember.
 
Reply
Old Jun 1, 2012 | 06:44 PM
  #5  
RedHorse1's Avatar
RedHorse1
Thread Starter
|
Senior User
15 Year Member
Joined: Jan 2006
Posts: 348
Likes: 1
An update on the Upper Arm

I got the driver's side in this evening. Lots easier than I expected.
Keep in mind this is an 03 and is 2WD.
Bump was pretty much spot on with his comments.
I found the shock has to come out. To get the shock out the tie-rod has to come off. My shocks have 15mm (3) on the top and a 30mm bolt on the bottom. No compressor needed unless you are changing the shocks too.
The tie-rod nut was 21mm.

Be ready to support the steering knuckle!

The ball joint nut was 21mm as were the two bolts through the pivots on the control arm. (the shock hadda come out to get the forward pivot bolt out, the rear pivot bolt had enough room tho)

I found I could secure the steering knuckle with some light twine From the upper BJ hole and the tie-rod hole to the forward body mount. (it worked for me)

Including a trip to HF I spent about 2 hrs on the first side. I expect the passenger side will go a little quicker tomorrow morning.

 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
npccpartsman
2009 - 2014 F150
7
Jan 31, 2014 08:17 AM
ScottInTexas
1997 - 2003 F150
3
Feb 27, 2012 06:27 PM
DOUG5G
Aerostar
18
May 11, 2011 02:27 AM
banddr2
Escape & Escape Hybrid
3
Oct 12, 2007 11:51 AM
1998Ranger25L153CID
1983 - 2012 Ranger & B-Series
11
Jun 9, 2007 05:23 PM




All times are GMT -5. The time now is 06:16 AM.

story-0
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-02 21:45:57


VIEW MORE
story-1
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-05-30 18:33:59


VIEW MORE
story-2
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-3
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-4
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-5
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-6
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-7
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-8
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-9
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE