nastee383

Does anyone have a driveshaft loop on their C3? Can you describe your install? Did you have to cut down the loop or make any other modifications?
I'm installing halfshaft loops and a driveshaft loop after my halfshaft exited the car and ended up next to the Christmas tree last time I raced.

nastee383

Come on, I know some of these 10 and 11 second quarter mile C3's have driveshaft loops. Talk to me.

Desertdawg

From what I have heard, we don't need them. with the very short driveshaft. and the low speed of the half shafts. Corvettes are exempt.

GrandSportC3

I think that forum member zwede is working on some bolt on driveshaft loops that bold to the crossmember. You might wanna page or IM him..

I personally can't use a driveshaft loop without cutting the fiberglass of the tunnel... My carbon fiber driveshaft is twice as thick as the stock one - leaving no space for a loop..

427V8

I have one, It mounts to the trans crossmember and extends backwards to the drive shaft...

Yes you need a front loop, if you break the front u-joint at speed you will flip the car without one...

TeenagerWith74Vette

I don't have one yet. But I plan on installing one soon. Can't be too hard.......

Jay

gkull

Nasty - Zwede or somebody on this forum was advertising them for under $100.

This year at the all Corvette drags I saw a home made unit that was mad of 1.5 X 1/4 flat stock.

It had a horseshoe loop that you just slipped up over the drive shaft and it bolted to another piece that ran nearly straight accross that was bolted to the body.

I was looking at options for myself.

tshort

After installing my x-pipe I've been wondering if a loop is still necessary? :confused:

GrandSportC3

Why?? The rear crossmember would prevent the driveshaft from hitting the floor and flipping the car... Most drag cars don't have a full frame like the corvette.. and the driveshaft could hit the floor... That can't happen on a Vette..

gkull

I don't think that our short drive shaft is long enough or strong enough to cause the car to lift up if it sheared at the tranny and hit the pavement.

But I did here about a Vette snapping the rear U-joint flang and before the guy could shut down the motor the bloody stub had broken and shattered most of the fiberglass tranny/drive line tunnel.

Personnally I just never worried about the drive shaft. I have lots of SFI parts Damper/flex plate/tranny blanket/seat/5 point harness/NHRA cage. Some tech inspector are much more knowledgable than others.

I don't have half shaft loop either.

NHvette

It seems to me that yo uwould be most worried about the ujoint letting go while at high speeds. However, it also seems that the time for the joint to let go will be during a launch which would be less dangerous.

Ok - now that I think about it - even my lame L48 will chirp the tires at 60,
so maybe there is a valid concern at high speeds and dumping the clutch.

Cheap and easy to make ... :seeya

Jack71

Good point... My xpipe exhaust is multifunctional too!!!

zwede

I'd be worried about the front driveshaft u-joint snapping while the car is moving and the driveshaft going through the floor. Early C3's had fiberglass floors and that won't stop a driveshaft coming through.

Yes, I'm having loops made. I'll call the fabricator after the holidays to check if they shipped yet. He was just fixing up the one for stock shifter 4-speeds that needed some modification before shipping them.

427V8

Have you ever seen what happens to a drive shaft when one lets go at the big end of the strip? :eek:


big mess...

mga1x

http://www.dragvette.com/links2509.html

Kid Vette

Hey mga1x,

Looks like Dragvette Products is another satisfied customer of Muskegon Brake Products TRW spring! Note the long spring bolt and the proximity of the spring end to the tire sidewall! Looks like the halfshaft breaking loose may be the least of his worries! I'd be more worried about the spring going thru the sidewall or having a flat tire and dragging the spring on the pavement!

:eek:

SmokedTires

I may end up fab'ing something for the front of the driveshaft when I'm installing the other engine in the spring. If I come up with anything, I'll be sure to post pics ;)

427V8

What ever happened to this nice setup??

http://forums.corvetteforum.com/zerothread?id=673318




[Modified by 427V8, 12:04 PM 12/31/2003]

zwede

That's the one I'm having sent over. I apologize for the delays. I thought I would have them in october... oh well. Hopefully I'll have them early january and can mail them out to the members that signed up for them. They are made by a fabricator in Europe, so that slows things down. Surface shipping takes quite some time. They're too heavy to airfreight economicallly.

norvalwilhelm

If we are talking about drive shaft loops I have had one in my car for years. It is alumimum and I put plates inside the car under the carpet so the driveshaft loop could be bolt to it.
It is the white aluminum plate under the driveshaft. :) :)