Art Morrison IRS install, 67 Camaro

[David Pozzi]

Baer did a conversion for us to convert to 14" rotors. The 15" rotors MAY clear 18" rims depending on the MFR of the rim. We possibly could have been OK but it was too close to risk it. Their conversion may not be a listed kit yet but they can do it. Have them look up what they did for Mary.
Willwood has rear brakes that work, that is what Art Morrison sells.

Here are the Baer 14" brakes on Mary's Camaro, Mary took more and better photos, I'll see if she has one of the brackets. I had to cut a flat on the GM cast aluminum knuckle but Morrison now does it for you. Mary's was the first customer unit, mine was the second.

[dhutton]

Time to bump this up for some updates from David. My install is complete except the e-brake cables. I plan to use an E-Stopp. I am running Brembo brakes off a 5th gen ZL1 so I had to swap the hubs. Here's a couple of pics. The exhaust is also done, I ran 2.5 inch under the center section.

Don

[ChevelleNV]

Time to bump this up for some updates from David. My install is complete except the e-brake cables. I plan to use an E-Stopp. I am running Brembo brakes off a 5th gen ZL1 so I had to swap the hubs. Here's a couple of pics. The exhaust is also done, I ran 2.5 inch under the center section.

Don

Nice looking setup Don, who did the driveshaft and adapters? I need to get a drive shaft for my Chevelle and I am gonna need the same adaptors

[dhutton]

Nice looking setup Don, who did the driveshaft and adapters? I need to get a drive shaft for my Chevelle and I am gonna need the same adaptors

The Driveshaft Shop. Nice guy, easy to work with.

Don

[Chad-1stGen]

Cool install David and Don!

[icemanrd19]

what lugnuts are those?

Baer did a conversion for us to convert to 14" rotors. The 15" rotors MAY clear 18" rims depending on the MFR of the rim. We possibly could have been OK but it was too close to risk it. Their conversion may not be a listed kit yet but they can do it. Have them look up what they did for Mary.
Willwood has rear brakes that work, that is what Art Morrison sells.

Here are the Baer 14" brakes on Mary's Camaro, Mary took more and better photos, I'll see if she has one of the brackets. I had to cut a flat on the GM cast aluminum knuckle but Morrison now does it for you. Mary's was the first customer unit, mine was the second.

[David Pozzi]

They are Summit brand. They are 4 to a package.

[dhutton]

They are Summit brand. I'll look for a part number.

What, no updates? I need to see how you routed the e-brake cables etc. I've used your build to help me get through the rest of the install, especially the floor and trunk mods.

I have purchased similar lug nuts on ebay. Just search for the size you need, they are usually one of the lower cost options.

Don

[lowrider]

Looking Good!!!

[David Pozzi]

We didn't hook up the E brake cables on Marys car. On mine, I may run them but don't have the brakes yet. If anyone contacts Baer for IRS brakes, they have it worked out, just tell them you want the same as Mary has. Her's are 14" with the R series calipers.

[David Pozzi]

Another note on something we have been dealing with. We loctited all the CV joint bolts and marked the heads with paint dabs. The inner left hand joint had a little more grease inside and we didn't get it all out of the threads the first time. Several bolts came loose on us on that joint only but we caught them in time. I cleaned the threads with carb cleaner and blew them dry and they are holding now. Just make sure you have everything clean when you apply the Loctite.

[gio75camaro]

David this is an awesome thread! I loved reading about the IRS in Mary's car and I can't wait to see yours come together!

[David Pozzi]

Thanks, I need to start a thread on my 67 build some time. It's been going pretty slowly but coming along. Nothing fancy, but hopefully it will be fast.

[gio75camaro]

Knowing the Pozzi reputation, I think fast might be an understatement David!! Hahaha

[dhutton]

Another note on something we have been dealing with. We loctited all the CV joint bolts and marked the heads with paint dabs. The inner left hand joint had a little more grease inside and we didn't get it all out of the threads the first time. Several bolts came loose on us on that joint only but we caught them in time. I cleaned the threads with carb cleaner and blew them dry and they are holding now. Just make sure you have everything clean when you apply the Loctite.

Mine came fully assembled with the CV boots installed etc. Do I need to remove the boots and check all the bolts?

Thanks again for your help David. You have saved my bacon quite a few times on this installation.

Don

[David Pozzi]

I didn't pull the boots, I figure they are packed with grease. I pulled the CV bolts, washed out the threads on the flange with brake cleaner spray. I used red loctite and had good luck on all but but the left side of the diff , it kept working loose on us. Finally I bought stage 8 locking fasteners. They have a tab that sticks out to prevent turning, and a snap ring holds the tab. I glass beaded the threads so the loctite would grab them better, they come Nickel plated. No more problems. I only used them on the LH side of the diff.

You must Torque and loctite EVERY bolt, including the steering link stud to the aluminum knuckle assy. Art Morrison does not torque them to final because they figure you will dissassemble to powder coat or paint them.

Another tip on the lug bolt pattern. Art Morrison uses a Corvette ZR1 hub, which has a std old style 4 3/4" bolt circle. The std late model Camaro hub uses a metric bolt circle so any late Camaro brakes you use would need to have the bolt pattern modified to fit. They are very close, but different. Also the center hole register is larger on the Corvette unit bearing.

Also you need to be careful if you change your camber setting. Changing camber will change the rear caster. Rear caster is the "clocking" of the rear knuckle looking at the side of the car. If rear Caster changes, the height of the toe links change and that greatly affects rear toe change as the suspension moves. The latest version of the installation manual should have the required caster specs. Measure by placing a degree finder against the caliper mounting bolts, or the underside of the calipers if you can find a flat area. Ask AME for a caster spec for the camber you are using.

[grendel]

I didn't pull the boots, I figure they are packed with grease. I pulled the CV bolts, washed out the threads on the flange with brake cleaner spray. I used red loctite and had good luck on all but but the left side of the diff , it kept working loose on us. Finally I bought stage 8 locking fasteners. They have a tab that sticks out to prevent turning, and a snap ring holds the tab. I glass beaded the threads so the loctite would grab them better, they come Nickel plated. No more problems. I only used them on the LH side of the diff.

You must Torque and loctite EVERY bolt, including the steering link stud to the aluminum knuckle assy. Art Morrison does not torque them to final because they figure you will dissassemble to powder coat or paint them.

Another tip on the lug bolt pattern. Art Morrison uses a Corvette ZR1 hub, which has a std old style 4 3/4" bolt circle. The std late model Camaro hub uses a metric bolt circle so any late Camaro brakes you use would need to have the bolt pattern modified to fit. They are very close, but different. Also the center hole register is larger on the Corvette unit bearing.

Looks like this:

http://www.lateral-g.net/forums/atta...1&d=1457578298

The rotor brake holes are larger, since the Camaro uses a 14MM stud and the ZL1 uses a 12mm stud. If you carefully open up the rotor hub register, you can make the rotor hub centric, which has no affect on the balance of the assembly. Kore3 made my radial brackets to put a Baer caliper on the Camaro 14.4" rotor.

[grendel]

Oh and the Corvette is 5 on 120mm and the Camaro is 5 on 120.4MM (or something like that).

[andrewb70]

The Camaro is 5x120 and the Corvette is 5x4.75"

Andrew

[grendel]

The Camaro is 5x120 and the Corvette is 5x4.75"

Andrew

Yeah, I am dyslexic.

4.75" in MM is 120.65MM = Corvette pattern, with 12MM wheel studs.

Camaro is 120MM with 14MM wheel studs.