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

Beam plates

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Old Jan 26, 2007 | 04:23 PM
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Default Beam plates

Do the zfdoc beam plates really help?
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Old Jan 26, 2007 | 05:33 PM
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Originally Posted by Puna
Do the zfdoc beam plates really help?
When and if you ever remove your tranny, these beam plates make it easy to install the C-beam. Also they're supposed to increase the surface area for clamping the C-beam to the tranny and the diff. I wouldn't install them unless you plan on removing the tranny. They are a well built product.
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Old Jan 26, 2007 | 11:39 PM
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They are a great investment if you tork them right 49 ft lbs front and 59 ft lbs rear.
To install you just need to remove the tail pipes.
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Old Jan 27, 2007 | 02:35 AM
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Default Driveline deflection

Originally Posted by Puna
Do the zfdoc beam plates really help?
As I understand it this is what they do. They reduce driveline deflection. Where driveline deflection is most noticeable is when you shift into second gear under hard acceleration. C4s tend to step out to the right with the rear end in this scenario. Beam plates eliminate or reduce this dynamic considerably. They also make the car feel more solid which is hard to prove because it is all relative to many other factors. They also make removal of the C beam much easier because you don't need a back up wrench on top loosen or tighten the nuts.
I like em !
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Old Jan 27, 2007 | 07:17 AM
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Default Another vote for them!

I put them in my 90 and I was a bit skeptical at first but after the install they do what they were advertized to do.

Plus they made the trans re-install way easier! Which is why I bought the kit to begin with. The kit comes with "plates" that you use on the top OE nuts in place of a wrench....waaaaay easier on the removal. The plates or "tool" also serves as a go-no go gauge to align the C-beam on the way back in. It's a neat set up and I felt it was worth the $, JMHO though.


Tom
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Old Jan 28, 2007 | 05:19 PM
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If I but the beam plates, can I use the upper bracket as a removal tool also? or should I just buy the removal tool? I dont plan on doing this more the ONCE
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Old Jan 28, 2007 | 06:47 PM
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i took the initiative and took the beam plates to the extreme...

what i did was use i believe 2" wide by 3/16" steel stock and cut into pieces that contoured the orig. C-Beam (3 pieces top and 4 bottom...or vice versa). i them welded the sections together and added the rails for the bolts on the upper beam. so instead of just "beam plates" i now have my C-Beam sandwiched in solid steel. i do not think the driveline will flex anymore...

but yes dear GOD did it make reinstalling the C-Beam easier...that alone is worth it. i needed no extra tools besides a hammer and an impact wrench
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Old Jan 29, 2007 | 07:09 AM
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Originally Posted by Puna
If I but the beam plates, can I use the upper bracket as a removal tool also? or should I just buy the removal tool? I dont plan on doing this more the ONCE
When I bought the "kit" from Bill the removal plates were listed as a separate item but when I was sent the quote for how much I owed the beam plate and the removal tool were packaged in a "kit" and the price was reduced to a package deal price. That was less than the listed prices for the two items separately. It was like a 10% less as a package, I'm thinking but I don't remember exactly. All I know is it was less than I added up & Bill called it a beam plate kit....either way I would have paid as it made r& r soooo much better!


Tom
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Old Jan 29, 2007 | 02:05 PM
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Originally Posted by Puna
Do the zfdoc beam plates really help?
The r/r of the c-beam is easier. My rear still kicks to right under hard acceleration, but not as bad as before the beam plates. I think they are worth it for the r/r of the c-beam alone. I don't think I would just buy them for "performance" under acceleration.
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Old Jan 29, 2007 | 05:59 PM
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Originally Posted by all4c4lt4
The r/r of the c-beam is easier. My rear still kicks to right under hard acceleration, but not as bad as before the beam plates. I think they are worth it for the r/r of the c-beam alone. I don't think I would just buy them for "performance" under acceleration.
The slight kick to the right was cured on my Vette with Urethane Batwing Diff carrier bushings.
The beam plates made my car feel solid. Its hard to explain but the car goes straighter when launching at the drag. I also believe the age of the car "shows" itself by being loose, and items like this are so good they bring it back to what it was when new or even better when installed with a lower mileage car. So, I beleive they are worth it. IMHO
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Old Jan 31, 2007 | 12:32 AM
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for instance, this gives a good visual of my beam plates...lol

do you think she'll flex any now?



i did this on top and bottom, and just added the rails for the nuts on the top side...

Last edited by Fubar569; Jan 31, 2007 at 12:35 AM.
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