Go Back  CorvetteForum - Chevrolet Corvette Forum Discussion > C4 Corvettes, 1984 - 1996 > C4 Tech/Performance
Reload this Page >

Del-A-Lum Upper Control Arm Bushing Install w/ Photos

Notices
C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Del-A-Lum Upper Control Arm Bushing Install w/ Photos

 
Old 11-07-2009, 09:57 PM
  #1  
95BLKVette
CF Senior Member
Thread Starter
 
95BLKVette's Avatar
 
Member Since: Nov 1999
Location: Yorktown Heights NY
Posts: 1,448
Received 2 Likes on 2 Posts
Default Del-A-Lum Upper Control Arm Bushing Install w/ Photos

There are not too many posts of this so I thought I'd oblige

I performed the assembly and put them in the car today

Fitting up the inside bushings...there are an assortment of three different pairs of inside plastic bushings that you mix to get a snug fit. Note the steel washers are on the outside to check fitup.


This is a shot to show the difference in the interior bushing thickness supplied.


I cut off the ends of the old control arm shaft that was damaged and used it as a pressing tool to press in the small bushing...see the next photo.


You press in the small end bushing first. I lightly greased the inside of the arm and the exterior of the blue aluminum bushing prior to pressing the bushings in. This is the set up ready to press the small bushing in.


Prior to installing the large bushing, the inner steel and plastic washers must be greased and installed on the new control arm shaft. The steel washers go on the inside and the plastic against the pressed in bushing in the arm. This is the set up ready to press in the large end bushing. Note the SS flat bar adjacent the shaft that is used to prevent the control arm from being compressed.


This is the assembled arm just waiting for the outer washers, nuts and grease fittings. Note how the threaded holes for the grease fittings are oriented to be upright when the arms are installed in the car.


I'll post some additional photos of the assembled arms in the car when I get a chance.
95BLKVette is offline  
Old 11-07-2009, 10:07 PM
  #2  
slickfx3
CF Senior Member
 
slickfx3's Avatar
 
Member Since: Oct 2008
Location: Los Angeles CA
Posts: 4,022
Received 26 Likes on 26 Posts
Default

Thanks for the pics, how does it handle?
slickfx3 is offline  
Old 11-07-2009, 10:16 PM
  #3  
95BLKVette
CF Senior Member
Thread Starter
 
95BLKVette's Avatar
 
Member Since: Nov 1999
Location: Yorktown Heights NY
Posts: 1,448
Received 2 Likes on 2 Posts
Default

Haven't taken it down from my lift yet

I also have to weld up a new support hanger for one of my mufflers

Will drive it tomorrow
95BLKVette is offline  
Old 11-08-2009, 04:12 AM
  #4  
mnstrlt1
CF Senior Member
 
mnstrlt1's Avatar
 
Member Since: Mar 2008
Location: Chandler Arizona
Posts: 3,018
Likes: 0
Received 1 Like on 1 Post
Default

wow, this is great! Who was the supplier for te del-a-lum? Great alternative to the previous nightmare.

You got to fill us in on the feel after install as well!
mnstrlt1 is offline  
Old 11-08-2009, 05:28 AM
  #5  
Weav's Vet
CF Senior Member
Support Corvetteforum!
 
Member Since: Dec 2007
Location: Sandhills of North Carolina
Posts: 3,616
Likes: 0
Received 2 Likes on 1 Post
Default

Originally Posted by mnstrlt1 View Post
wow, this is great! Who was the supplier for te del-a-lum? Great alternative to the previous nightmare.

You got to fill us in on the feel after install as well!


I want to rebush mine at some point. Sure don't want a mess like you had!
Weav's Vet is offline  
Old 11-08-2009, 08:28 AM
  #6  
jimg's'93
CF Senior Member
 
jimg's'93's Avatar
 
Member Since: Nov 2005
Location: Charlotte NC
Posts: 1,324
Likes: 0
Received 0 Likes on 0 Posts
Default

Looks like a sweet install, but I'm guessing you'll have a harsher ride. I'll stay tuned
jimg's'93 is offline  
Old 11-08-2009, 08:25 PM
  #7  
95BLKVette
CF Senior Member
Thread Starter
 
95BLKVette's Avatar
 
Member Since: Nov 1999
Location: Yorktown Heights NY
Posts: 1,448
Received 2 Likes on 2 Posts
Default

I'll be doing my 92 mile round trip to Manhattan tomorrow morning....will post the results tomorrow.

Should just be nice and crisp again

Remember, I still have the urethanes on the lowers
95BLKVette is offline  
Old 11-08-2009, 09:41 PM
  #8  
96GS#007
Tech Contributor
 
96GS#007's Avatar
 
Member Since: Apr 2000
Location: Los Angeles CA
Posts: 8,489
Received 250 Likes on 215 Posts
Default

I have these as well. They're made by Global West. Not sure of the cost these days, used to be around $300 total for the uppers & lowers.

Handling is much improved, as is feel. When I did mine, I also did poly for the sway bars, and a few other things. On a road course, the feel was night and day. The ride is a more harsh but not unreasonable and frankly it never bothered me.







96GS#007 is offline  
Old 11-09-2009, 09:22 AM
  #9  
BrianCunningham
CF Senior Member
 
BrianCunningham's Avatar
 
Member Since: Mar 2001
Location: Boston, Dallas, Detroit, SoCal, back to Boston MA
Posts: 28,661
Received 83 Likes on 59 Posts
Default

Nice to hear, I bought a set for mine and will be installing them over the winter.
BrianCunningham is offline  
Old 11-09-2009, 08:28 PM
  #10  
95BLKVette
CF Senior Member
Thread Starter
 
95BLKVette's Avatar
 
Member Since: Nov 1999
Location: Yorktown Heights NY
Posts: 1,448
Received 2 Likes on 2 Posts
Default

Drove like a dream

No harshness that I can tell, but it handles very well.

Directional changes are virtually instantaneous, and I have urethanes everywhere else

I purchased my uppers direct from Globalwestperformance.com this is a copy of the actual order:

1984-96 Corvette Front GWS-1059 1 154.99
upper arm Del-a-lum
bushings
Subtotal 154.99
Shipping 25.22 (3 day UPS Saver)
Tax 0.00
Total 180.21
95BLKVette is offline  
Old 11-09-2009, 10:45 PM
  #11  
Kubs
CF Senior Member
 
Kubs's Avatar
 
Member Since: Oct 2007
Location: Akron Ohio
Posts: 6,844
Received 127 Likes on 117 Posts
St. Jude Donor '09-'10-'11
Default

Very nice! I have heard good things about these and will be installing them on mine soon.

96GS#007, I notice the lowers appear to have a hole for a grease fitting that is not in the control arm? Did you have to drill for one?
Kubs is offline  
Old 11-09-2009, 10:56 PM
  #12  
pologreen1
CF Senior Member
 
pologreen1's Avatar
 
Member Since: Dec 2007
Posts: 16,152
Received 226 Likes on 214 Posts
Default

cool
pologreen1 is offline  
Old 11-10-2009, 01:55 AM
  #13  
96GS#007
Tech Contributor
 
96GS#007's Avatar
 
Member Since: Apr 2000
Location: Los Angeles CA
Posts: 8,489
Received 250 Likes on 215 Posts
Default

Originally Posted by Kubs View Post
Very nice! I have heard good things about these and will be installing them on mine soon.

96GS#007, I notice the lowers appear to have a hole for a grease fitting that is not in the control arm? Did you have to drill for one?
96GS#007 is offline  
Old 11-10-2009, 12:14 PM
  #14  
steve40th
CF Senior Member
 
Member Since: Feb 1999
Location: Hawaii
Posts: 8,522
Likes: 0
Received 2 Likes on 2 Posts
St. Jude Donor '03 & '05
Default

Originally Posted by 96GS#007 View Post
I like the idea of a grease zirk in there. WIsh we could do it for all ploy bushing areas in our suspension.
steve40th is offline  
Old 11-10-2009, 12:19 PM
  #15  
Kubs
CF Senior Member
 
Kubs's Avatar
 
Member Since: Oct 2007
Location: Akron Ohio
Posts: 6,844
Received 127 Likes on 117 Posts
St. Jude Donor '09-'10-'11
Default

Originally Posted by 96GS#007 View Post
Does the hole in the LCA have to line up perfect with the one in the bushing or does the grease fitting not go that far and the grease just has to be able to get into the bushing?
Kubs is offline  
Old 11-10-2009, 12:24 PM
  #16  
96GS#007
Tech Contributor
 
96GS#007's Avatar
 
Member Since: Apr 2000
Location: Los Angeles CA
Posts: 8,489
Received 250 Likes on 215 Posts
Default

Originally Posted by Kubs View Post
Does the hole in the LCA have to line up perfect with the one in the bushing or does the grease fitting not go that far and the grease just has to be able to get into the bushing?
I've had them for many years and don't remember. I'm sure the guys at Global West could answer.
96GS#007 is offline  
Old 11-10-2009, 05:59 PM
  #17  
Bluewasp
CF Senior Member
 
Bluewasp's Avatar
 
Member Since: Feb 2001
Location: Manassas VA
Posts: 13,312
Received 4 Likes on 4 Posts
NoVa Events Coordinator
St. Jude Donor '14
Default

Bluewasp is offline  
Old 11-10-2009, 08:35 PM
  #18  
95BLKVette
CF Senior Member
Thread Starter
 
95BLKVette's Avatar
 
Member Since: Nov 1999
Location: Yorktown Heights NY
Posts: 1,448
Received 2 Likes on 2 Posts
Default

Originally Posted by Kubs View Post
Does the hole in the LCA have to line up perfect with the one in the bushing or does the grease fitting not go that far and the grease just has to be able to get into the bushing?
You must drill a hole in the center of the control arm and then line up the bushing so when it is pressed in it aligns with the hole in the center of the lower control arm bushing

Look at this link to see a photo of the the bushing kit:

http://ep.yimg.com/ca/I/yhst-5787474..._2076_19573410

Last edited by 95BLKVette; 11-10-2009 at 08:42 PM.
95BLKVette is offline  
Old 11-28-2009, 09:41 AM
  #19  
TJM
CF Senior Member
 
TJM's Avatar
 
Member Since: Sep 2002
Location: Suwanee,Ga
Posts: 1,642
Likes: 0
Received 0 Likes on 0 Posts
Default

Al a couple questions. I just installed a set, yesterday, uppers only so far.

1. Did you install the Derlin bearings AFTER installing the Al. bushings?

2. How stiff was the fit. I can barely move my upper arm? Haven't fully greased them via the fittings, but the stiction is fierce and I expected the opposite?

TJM
TJM is offline  
Old 11-28-2009, 10:51 AM
  #20  
95BLKVette
CF Senior Member
Thread Starter
 
95BLKVette's Avatar
 
Member Since: Nov 1999
Location: Yorktown Heights NY
Posts: 1,448
Received 2 Likes on 2 Posts
Default

I manually greased the delrin inserts and installed them prior to pressing in the aluminum replacement bushing inserts.

It is very important to also inert a support beteen the arms (see my photo of temporary strut installed between arms) prior to doing the second insert install or you will spring the A arm and cause a permanent misalignment which can cause binding.

Prior to torquing the end nuts to 10 ft-lbs, I made sure everything was well greased. I then worked the arms up and down to loosen them up and get the grease flowing, then retorqued the arms and then drilled the holes for the cotter pin install.

After installing the cotter pins, the arms did have some resistance, but basically were pretty readily moved up and down without excessive force.

Hope this helps.

BTW, just checked how they look in the car and they are a thing of beauty....some of the best $'s I've spent
95BLKVette is offline  

Thread Tools
Search this Thread
Quick Reply: Del-A-Lum Upper Control Arm Bushing Install w/ Photos


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: