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| PLRX | SPC Upper Control Arms (UCA) Installation | ||
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Senior Guru
 
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First, I'd like to thank Brian Cinnungham for his help on this project.[IMG]http://i567.photobucket.com/albums/ss111/quigonjinn1/thumbup1.gif[/IMG]
About a year ago I bought the SPC's Upper Control Arms. Few days ago I finally decided to remove them from the living room and get them installed. Lift Vette, place jackstands, remove tires, remove dust shield and remove upper ball joint [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA.jpg[/IMG] Cleaned the ball joint [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA1.jpg[/IMG] Remove the UPC [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA2.jpg[/IMG] Test the new BJ bolts. [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA3.jpg[/IMG] Match to fit the new UPC with the old one. [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA4.jpg[/IMG] Using 1/8" shims, match the size of shims and spacers. [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA5.jpg[/IMG] I used krazy glue to keep shims together. [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA6.jpg[/IMG] Test to fit, Check- [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA7.jpg[/IMG] Installed shims, Torque UPC bolts to 40 lbs-ft. [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA8.jpg[/IMG] Torque BJ bolts to 13 lbs-ft [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA9.jpg[/IMG] Torque the three pivot bolts to 60 lbs-ftf. [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA10.jpg[/IMG] Grease up the UPC. [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA11.jpg[/IMG] Torque the upper BJ between 50~88 lbs-ft or until the cotter pin hole aligns. [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA12.jpg[/IMG] Drove around the neighborhood for about a mile to get things down. Quick but, not official alignment. Good enough at "-0.50" Camber to make it to the alignment shop. [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA13.jpg[/IMG] Very easy to make adjustments [IMG]http://i275.photobucket.com/albums/jj290/plrx/PLRX%20LT4/SPCUCA/SPCUCA14.jpg[/IMG] |
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Posted on: 2011/2/9 4:19
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| TommyT-Bone | Re: SPC Upper Control Arms (UCA) Installation | ||
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Chair-man of the bored
 
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Very nice write up. It's always nice to have someone to bounce ideas off of. Nice job to both you and Brian for his input.
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Posted on: 2011/2/9 4:25
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| bogus | Re: SPC Upper Control Arms (UCA) Installation | ||
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Grand Imperial Pooh-Bah
 
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Sweet! Any difference in drive feel?
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Posted on: 2011/2/9 5:06
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| pianoguy | Re: SPC Upper Control Arms (UCA) Installation | ||
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Guru Emeritus
 
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Excellent!
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Posted on: 2011/2/9 13:16
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1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey |
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| Bronze85 | Re: SPC Upper Control Arms (UCA) Installation | ||
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Guru Newb
 
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Interesting!
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Posted on: 2011/2/9 17:12
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| NelsonV | Re: SPC Upper Control Arms (UCA) Installation | ||
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Senior Guru
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I'm curious as to why you used shims with the adjustable uppers. I mean the purpose is to do away with shims for adjustment right?
One idea that was suggested to me (that I never did): 1) Do your baseline alignment, for everyday driving, using only the adjustable UCAs. 2) Then you can do a secondary, "performance" alignment for added negative camber using shims. This allows you to quickly change between street and track camber settings by removing/replacing the shims and not having to adjust the turnbuckles on the UCAs. Edit: I may have steps 1 and 2 reversed depending on whether the crossbar is mounted inboard or outboard of the frame mount, but I think you get the idea. By the way, I made new CrMo sleeves for my UCAs. Pics are here: http://www.chevelles.com/forums/showthread.php?t=231383 And further explanation why is here (in post #12): http://www.corvette-guru.com/modules/ ... t_id=46980#forumpost46980 |
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Posted on: 2011/2/9 19:19
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| PLRX | Re: SPC Upper Control Arms (UCA) Installation | ||
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Senior Guru
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You can not expand the UCA's thread longer than an inch. I calculated the size and alignment and installed 9-1/8" shims. Thats why I had to use shims without shims the UCA would expand longer than an inch.
They come without instructions but, I searched and found them. |
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Posted on: 2011/2/10 1:24
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| NelsonV | Re: SPC Upper Control Arms (UCA) Installation | ||
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Senior Guru
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Quote:
Oh, now I see. Yeah I had a similar issue. Two of my sleeves were a little too short for my application, so I made my own. (Who did you buy the UCAs from? My vendor would have supplied any length sleeve needed.) Also, I can't really tolerate a stack of shims in my car. In the Chevelle, the UCA cross-shaft is mounted in-board of the frame perch and would interfere with me headers.   |
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Posted on: 2011/2/10 2:11
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