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How to install Vette Brakes Spreader Bar in a C3

  • Thread starter Thread starter C3RVETTE
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C3RVETTE

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How to install Vette Brakes Spreader Bar in a C3



" I had been wanting to install one of the spreader bars for a long time just to firm up the front suspension. Well I finally broke down and spent the money. When the package finally arrived at my door I was impressed with the unit. Everything is powder coated in a nice gloss black. The threaded ends of the heim joints are already coated in copper shield so you don't have to worry with rust seizing the bar in place should you ever want to remove it. After I took a few pics of the set up loose on the floor I made my plan of attack. Follow along as I install the bar. It is very easy and can be done in about 30 minutes to 1 hours time.
parts_list2.jpg
1. You need to get a piece of paper and make a note or diagram of the location of all the shims installed on drivers side and passengers side.
ds_shims.jpg
2. Put your floor jack under the frame rail just below the door. Lift the car just enough to take some weight off the front suspension. This will allow you to remove the nuts holding the upper a-arm cross shaft in place.
ds_cross_shaft_nuts_removed.jpg
3. Remove both nuts on the upper cross shaft studs. Remove one about halfway at first, then start the second one and make sure your shims are gonna stay put. If they start to fall out, give the floor jack another pump. 4. Install one of the spreader bar mounts over the cross shaft studs putting the mounting ears toward the front of the car.
ds_bracket_installed.jpg
5. Ensure that all shims you counted are still in place as they should be and put the nuts back on. Let your car back down to the ground. See that wasn't so hard. 6. Go to the opposite side of the car and start over at step one again. You will be over halfway home when you get that done. 7. Install the heim joint into the spreader bar itself.
heim_joint.jpg
8. Place one end of the spreader bar between the ears of the spreader bar mount. Start the bolt through the mount, then put a bushing, then the heim joint, bushing and push the bolt through each part as you go. When you get the bolt completely through both ears of the mount, install a flat washer and the locknut. 9. Go to the opposite side of the car and lengthen the spreader bar by holding the heim joint in one hand and twisting the middle of the spreader bar until the mounting holes line up. You can use the mounting bolt to ensure you get the correct distance between the spreader bar ends. When the correct length is attained the mounting bolt will slip into both ears through the heim joint. 10. Pull the bolt out far enough so you can install a bushing, then the heim joint, bushing and then through the last mounting ear. Now put on a washer and the lock nut. There your bar is now installed.
finished4.jpg
11. Adjust the spreader bar with just a touch of preload on it. When you get this done, tighten the jam nuts up against the spreader bar and you are done. 12. Stand back and admire your handiwork for a little bit.
finished3.jpg
13. When you get tired of gawking at your new spreader bar, jump into the drivers seat and take your vette for a little ride. I hope this little write up helps any one who may need it. It was a very easy install. The only hard part of the whole install was putting the second bushing in place. But even that was not that hard. After driving the car a little, the steering response seems to be a little quicker. The car seems to have a more solid feel.":w
 
I have been thinking about putting one into my '81 for a long time, too. Could you please keep us updated as to how the car feels with the bar (less shake, more steady etc.), as well as any problems?



Thanks,



--Chris Kennedy

Houston, Texas
 
i saw an 80 or 81 this summer with that. It looked really cool. I want one, but it'll have to wait.
 
Thanks for the write-up. I had to have alot of welding done after tack welds on my cradle broke, causing it to flex and eventually crack almost half way across from back to front. I got to looking at the spreader bar then but haven't gotten one yet.

I never could figure out how to install it because everything I read and heard talked about installing it to set it up. taking it off to be welded, and then re-installing and adjusting it. I wonder what the welding was about?
 
Sorry,guys,I should have stated that I didnt write this article,and havent done this installation on my 79 either.But after reading it,I want to get one myself!Anything to firm up any flex in my suspension I want,as long as the ride isnt super harsh.I've recently put all new poly bushings in my suspension from Energy Suspension,and HD adjustable tie rods,and Smart Struts from VBandP.com in,4 new KYB GR2 shocks,new larger front sway bar,6 new Spicer u-joints,wheel bearings,etc. underneath.Next when I get money again..front and rear monosprings.
 
I agree with Tony. A very nice writeup. Thanks for taking the time. I would like to install one some day but I have this problem with a 3 inch blower belt right where the bar wants to be.
 
norvalwilhelm said:
I agree with Tony. A very nice writeup. Thanks for taking the time. I would like to install one some day but I have this problem with a 3 inch blower belt right where the bar wants to be.
so what's the problem with that??? you don't need steering with the font end off the ground.
 
Vette Brakes & Products said:
C3RVETTE,

Very nice write up ! ! !

Excellent job ! ! !

Tony
VBP
I find by checking VBP's website,that welding of the tabs is required if you have an engine driven fan-like most of us I assume,but not if you have installed an electric one.Is that correct,Tony?
 
You may be right Tony, but nothing really shows / tells what needs to be welded or why. I guess it will become apparent once I buy it or the instructions will clear this up.
 
Can someone educate me............what exactly is the spreader bar for??

I understand from reading the attached it has something to do with firming up the front end ride and/or handling........correct? How exactly does it do that, any ideas???

Now that I've read this and am in the process of pulling my motor, I may do this for the right reason but not sure what that is......forgive my ignorance here, thanks
 
Thanks for the clarifying this. It makes sense to aliagn the tabs to clear the water pump before making it a permanent connection.
 
goingballistic said:
Can someone educate me............what exactly is the spreader bar for??

I understand from reading the attached it has something to do with firming up the front end ride and/or handling........correct? How exactly does it do that, any ideas???

Now that I've read this and am in the process of pulling my motor, I may do this for the right reason but not sure what that is......forgive my ignorance here, thanks
It looks to me that it does the same thing the bar does on ricer cars,that have the bar on top of the shock towers in the engine compartment.These just mount lower on the bottom to stffen the supension up,& take up any potential "play" in the front.
 
Thanks gents for clearing that up, it helps a lot.

Tony, I'm assuming you have a link somewhere on the CAC??

Paul.
 

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