Driveshaft Loop On a C3?
Thread Starter
Melting Slicks
Joined: Apr 2000
Posts: 2,145
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From: Ft. Walton Beach, Fl USA
Driveshaft Loop On a C3?
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.
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.
Race Director
Joined: Jun 2001
Posts: 16,483
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From: The Only Corvette in Gila Bend, Az.
St. Jude Donor '09
Re: Drive-shaft Loop On a C3? (nastee383)
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.
Team Owner
Joined: Jul 2001
Posts: 182,997
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From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Driveshaft Loop On a C3? (nastee383)
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..
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..
C6 the C5 of tomorrow
Joined: Nov 2000
Posts: 6,665
Likes: 2
From: Twin Cities Minnesota
Re: Driveshaft Loop On a C3? (GrandSportC3)
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...
Yes you need a front loop, if you break the front u-joint at speed you will flip the car without one...
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Re: Driveshaft Loop On a C3? (TeenagerWith74Vette)
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.
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.
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Team Owner
Joined: Jul 2001
Posts: 182,997
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From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Driveshaft Loop On a C3? (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...
Yes you need a front loop, if you break the front u-joint at speed you will flip the car without one...
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,443
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Re: Driveshaft Loop On a C3? (GrandSportC3)
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.
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.
Le Mans Master
Joined: Jun 2002
Posts: 8,339
Likes: 24
From: I can walk to MA
Re: Driveshaft Loop On a C3? (nastee383)
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
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
Race Director
Joined: Sep 1999
Posts: 11,358
Likes: 379
From: Plano TX
Re: Driveshaft Loop On a C3? (Jack71)
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.
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.
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Joined: Nov 2003
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From: rochester ny
Melting Slicks
Joined: Jun 2003
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From: Niles, MI
Re: Driveshaft Loop On a C3? (mga1x)
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:
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:
Le Mans Master
Joined: Apr 2000
Posts: 7,562
Likes: 9
From: B'Ville NY
Cruise-In III Veteran
St. Jude Donor '05
Re: Driveshaft Loop On a C3? (Kid Vette)
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 ;)
C6 the C5 of tomorrow
Joined: Nov 2000
Posts: 6,665
Likes: 2
From: Twin Cities Minnesota
Re: Driveshaft Loop On a C3? (SmokedTires)
What ever happened to this nice setup??
http://forums.corvetteforum.com/zerothread?id=673318
[Modified by 427V8, 12:04 PM 12/31/2003]
http://forums.corvetteforum.com/zerothread?id=673318
[Modified by 427V8, 12:04 PM 12/31/2003]
Race Director
Joined: Sep 1999
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From: Plano TX
Re: Driveshaft Loop On a C3? (427V8)
What ever happened to this nice setup??
Race Director
Joined: Nov 2000
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From: Waterloo ontario Canada
Re: Driveshaft Loop On a C3? (nastee383)
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. :) :)
It is the white aluminum plate under the driveshaft. :) :)
