C4 Beam Plates ( Customer Evaluation/Feedback)
The gearbox is great. Several people who
have driven the car have remarked about it's smooth and positive feel.
The car is doing great. I spanked two couple of ZO6's in April
prior to the engine work. I believe that it will be a rare ZO6 that
will be able to hang with me on the straights. I love the support
plates. The car launches straight and the car does not skip if I power
shift it. I recommend them to everyone. Joe
Thanks very much for the professional information. I really appreciate it!
Also, I like the backbone stiffeners that I purchased from you some time ago.
These really do make a difference at launch and hard 1st to 2nd gear shifts. I
have recommended these to several already.
Todd in Germany
To: Grand Sport Registry Mail List -http://grandsportregistry.com
> Get Bill Boudreau's drive line reinforcement plates and your et will
improve as well as your mph. These
> things keep the car flat straight when you hit second and third.
Yep, these things work great. Of all the bolt on crap you
can get for your car, it is so refreshing to install
something you can actually FEEL for a change! :)
Learn about them at http://www.zfdoc.com/c4beamplate.htm
FYI, I have Bill's C4 driveline reinforcement plates installed in GS #633 and
can attest that they perform as advertised. The car launches straight and the
1-2 shift is much more controllable now.
Now if he only designed an item to increase driver skill accordingly!
Rusty, I'll endorse Bill's driveline reinforcement plates anytime. They definitely improved the way the car FEELS
at launch and that critical 1-2 shift. Before, I had a severe torque-twist on
the 1-2 shift that made it feel like the back end really wanted to jump to the
right. Very disconcerting. That feeling is now GONE! The car now jumps forward
instead of sideways.
I like "Slingshot Plates" as a name for
them. Not exactly self explanatory, but that's what they do to the car!
John 'Hutch' Hutchinson
1996 Grand Sports: #633 WYLDTHG & #707 VETVIXN
NCCC, GSR, ZR1-GOLD, LT5R, & NCM Lifetime #597
Installed a set of
ZR51 Driveline Support Reinforcement Plates. What a difference! No
more side stepping on the first to second shift. Installation time was
about two hours with hand tools, two floor jacks and jack stands. Two of
the driveline bolts, one front and one rear, were barely greater than finger
LT-5 Registry #600
ZR1 owner since 9 Jan 01
I just want to say thanks to
Tom Henry Chevrolet for doing a wonderful job installing a Corsa exhaust, a Marc
Randolf chip, a set of C-Beam plates from Bill Boudreau and 4.10 gears.
You guys just added some wonderful technology to my car. Thanks for all of
the help from the ZR1Net for recommending these products.
I just tried the car out
tonight and it is unreal. Although I couldn't jump on it as hard as I
wanted to, it felt and sounded great.
1995 #393 White/Gray
LT5 Registry #603
Finally got the transmission back in the ZR-1. It works great! Thanks for the
professional work. The shifter is also great. I can almost shift with two
would not hesitate to recommend your services, you are top notch. I wish every
one in the automotive business did as good of work as you do.
<< I have been having a problem with my trans
moving around a lot. I installed Bill Boudreau's C-beam plates front and
back. They worked just as advertised. No movement and stayed
tight. I was impressed. >>
I was studying the plates Bill makes and it occurred to me he hasn't mentioned
the one benefit that may be the biggest benefit of all. We've read about C4's
where the shifter goes up and down on acceleration and others that have the
bottom 3 bolts pulled out of the tail housing. When you jump on one
of these cars the beam wants to raise the trans and the engine weight plus
acceleration wants to push the back of the trans down. If there is any
slippage in the front beam bolts, it acts like a pivot point and twists on the
tail housing, pulling the lower bolts out. In my opinion, anyone that has a
ZR-1 and likes to stomp on it occasionally, sure ought to get some of
Bill's plates on sooner than later. Not a paid message, just my two cents.
Z are like mine and the trans moved around quite a bit. Could not seems to
keep the C-Beam bolts tight no matter what I did. Others seem to have no
problem at all. On the cars that do have the problem, the plates would be
a good idea. On the others, it would be just insurance and perhaps
help a little in holding everything in line. Installation is straight
forward but a pain. You probably have to drop the exhaust then remove the
4 nuts holding the C-beam, front and back and install the plates. Tighten
up and reinstall the exhaust. Done. To me, they were well worth the
Bill gave them to me to be a test mule as he knew I had a problem and drive my Z
pretty hard. If they worked for me, then they would probably work for
anyone. They worked. I do not notice any trans movement now where
installation, it seemed like the trans would move at least an inch or more under
acceleration. To me, that was quite a bit. I thought I might have a
broken motor mount it moved so much. But that turned out not to be the
case. The plates fixed the problem. I would recommend them and
knowing what I do now, would buy them at the regular price in an instant to
solve trans movement problem. The changing angles of the drive shaft
cannot be good for the drive train. This is based on what I have observed
in the last week or so. I just installed them in time for the Texas Tri.
But I drove the Z very hard during the race weekend and everything stuck
will report any change if it occurs. I would also recommend them if you
have to remove the C-beam with any frequency. Trying to hold backup on the
nuts on top of the trans is a bitch. These plate with nuts do not need
backup and facilitate removal and installation of the C-beam. (To Misled and
Zasio, that means it makes it easier).
Send email to firstname.lastname@example.org or call
Bill Boudreau at (602) 319-6575.
Last modified: July 19, 2003