Drive shaft loop? - Competition Diesel.Com

*Dalpilot* · 02-03-2010, 09:01 PM

Does there need to be one towards each end of the shaft, or just one in general? My frame section I bought has an area pre made for it, but I am thinking where its at is gonna be really far aft.

Signature600 · 02-03-2010, 09:04 PM

Just need one to keep the front of the shaft from digging into the pavement if it breaks...the back of the shaft will just drag along...

At least that's what I think I've read in the rules

Chris

BTW, are you having fun making all these new forums for me to post in tonight??

*Dalpilot* · 02-03-2010, 09:10 PM

I had it made just for you Chris.

Signature600 · 02-03-2010, 09:13 PM

Thanks...glad I am stuck here in front of the computer trying to make our company email work so I can help you slow the server down...

Chris

SINNER · 02-03-2010, 09:19 PM

I think you want to cover the u joints too, just for your safety and the spectators.

Signature600 · 02-03-2010, 09:21 PM

Good point...at least the rear one...the other one should be tucked up under the body enough to protect everyone...but would probably be good insurance to cover them

Chris

*Dalpilot* · 02-03-2010, 09:23 PM

Yeah, I didn't think of that. Thanks

*BIGRPOWR* · 02-03-2010, 09:23 PM

Quote:

Originally Posted by SINNER

I think you want to cover the u joints too, just for your safety and the spectators.

yep, single driviline only requires one, at least that USED to be the nhra standard. thats how i did mine, i had 3 ..because i had a 4wd w/ 2 piece rear driveshaft. almost all sanctioning bodies have it in their rules. taken from NHRA rules

"Since traction is the key to going quick, this places more strain on the driveshaft. To prevent the driveshaft from breaking at the front U-joint area and perhaps coming into the interior of the car, or digging into the track and pole-vaulting the car, NHRA mandates that a steel loop be placed just behind the front U-joint of the driveshaft. A universal driveshaft loop is available from Lakewood that bolts to the floorpan. A rollbar is required in this e.t. bracket only if the car is a convertible. "

Lucky Jeff · 02-03-2010, 09:31 PM

I wouldn't be worried about just pivoting off the driveline. But also the thing tearing the absolute crap out of your bed or anything else you have back there.. Seems like cheap insurance to have two.

morkable · 02-03-2010, 09:31 PM

The most important part is the front part of the driveshaft cant hit the ground.. but they prefer if it can keep either side from touching

*Dalpilot* · 02-03-2010, 09:32 PM

Yeah, I have seen it tear the crap out of a bed. Remember DJ and Mini Me?

*IdahoRob* · 02-03-2010, 10:05 PM

I don't have my rule book here, but think the loop needs to be no more than 8" from the front of the shaft.

joefarmer · 02-03-2010, 10:51 PM

I believe 6" from teh center of the yoke. I did both ends. I don't want it shearing at the rear and ejecting under the tires.

daithi2 · 02-04-2010, 09:20 AM

Quote:

Originally Posted by joefarmer

I believe 6" from teh center of the yoke. I did both ends. I don't want it shearing at the rear and ejecting under the tires.

you sir are correct.

*Michael* · 02-11-2010, 05:19 PM

My tube chassis car has a rear one too, but it is pretty high for the opening to allow for suspension travel. As a result, when I snapped a pinion shaft (allowing the whole yoke to slam around) I took a pretty hard hit into the interior of the car (dented and cut the tinwork, scared the crap out of me). I'd hate to think what would have happened without the double loops. I think they ought to be required if you have a non-stock floorpan.

Regards,
Michael Pliska

crewgirl · 02-11-2010, 05:24 PM

Cody, RubberDuck, makes awesome driveshaft loops that basically have "loops" placed all along the shaft. If and when I need one, that's what I want.

DieselWrencher · 02-11-2010, 10:08 PM

I put one on both ends of mine. Mainly because the front u joint is right beside me and I don't want to see it explode.

paulb · 02-12-2010, 10:05 AM

I use Joe Hellmann's on both of my trucks. I know you use other products by Joe, just wanted to make sure you remembered he made drive shaft loops.

Paul

*Dalpilot* · 02-12-2010, 10:09 AM

Yeah, I might just take it down to Joe, and have him fab a couple right there.

02-03-2010, 09:01 PM	#1
Dalpilot Name: Dalpilot Title: Joe Nobody! Status: Not Here Join Date: Apr 2006 Location: Austin, Texas Member`s Gallery Posts: 11,373	Drive shaft loop? Does there need to be one towards each end of the shaft, or just one in general? My frame section I bought has an area pre made for it, but I am thinking where its at is gonna be really far aft. __________________ 2017 White f-250 COMPETITIONDIESEL.COM Bringing the best together

02-03-2010, 09:04 PM	#2
Signature600 Name: Signature600 Title: THA MAN! Status: Not Here Join Date: Aug 2006 Location: Jeffersonville, Ohio Member`s Gallery Posts: 11,974	Just need one to keep the front of the shaft from digging into the pavement if it breaks...the back of the shaft will just drag along... At least that's what I think I've read in the rules Chris BTW, are you having fun making all these new forums for me to post in tonight?? __________________ THANKS TO: Tim Barber @ TRE Diesel Jeff Mumau @ Mumau Diesel Service Rip @ Source Automotive Don Thuren @ ThurenFab Suspension Columbus Diesel Supply

02-03-2010, 09:10 PM	#3
Dalpilot Name: Dalpilot Title: Joe Nobody! Status: Not Here Join Date: Apr 2006 Location: Austin, Texas Member`s Gallery Posts: 11,373	I had it made just for you Chris. __________________ 2017 White f-250 COMPETITIONDIESEL.COM Bringing the best together

02-03-2010, 09:13 PM	#4
Signature600 Name: Signature600 Title: THA MAN! Status: Not Here Join Date: Aug 2006 Location: Jeffersonville, Ohio Member`s Gallery Posts: 11,974	Thanks...glad I am stuck here in front of the computer trying to make our company email work so I can help you slow the server down... Chris __________________ THANKS TO: Tim Barber @ TRE Diesel Jeff Mumau @ Mumau Diesel Service Rip @ Source Automotive Don Thuren @ ThurenFab Suspension Columbus Diesel Supply

02-03-2010, 09:19 PM	#5
SINNER Name: SINNER Title: BallSoHard U Status: Not Here Join Date: Feb 2007 Location: The Un Free State Member`s Gallery Posts: 4,803	I think you want to cover the u joints too, just for your safety and the spectators. __________________ 2004 f-350 cc drw Build a man a fire and he'll be warm for a day... Set a man on fire and he'll be warm for the rest of his life.

02-03-2010, 09:21 PM	#6
Signature600 Name: Signature600 Title: THA MAN! Status: Not Here Join Date: Aug 2006 Location: Jeffersonville, Ohio Member`s Gallery Posts: 11,974	Good point...at least the rear one...the other one should be tucked up under the body enough to protect everyone...but would probably be good insurance to cover them Chris __________________ THANKS TO: Tim Barber @ TRE Diesel Jeff Mumau @ Mumau Diesel Service Rip @ Source Automotive Don Thuren @ ThurenFab Suspension Columbus Diesel Supply

02-03-2010, 09:23 PM	#7
Dalpilot Name: Dalpilot Title: Joe Nobody! Status: Not Here Join Date: Apr 2006 Location: Austin, Texas Member`s Gallery Posts: 11,373	Yeah, I didn't think of that. Thanks __________________ 2017 White f-250 COMPETITIONDIESEL.COM Bringing the best together

02-03-2010, 09:31 PM	#9
Lucky Jeff Name: Lucky Jeff Title: Stock Sucks Status: Not Here Join Date: Apr 2007 Location: Bonney Lake, WA Member`s Gallery Posts: 5,784	I wouldn't be worried about just pivoting off the driveline. But also the thing tearing the absolute crap out of your bed or anything else you have back there.. Seems like cheap insurance to have two. __________________ Well, damn 98 Cummins - dead 77 Highboy - dead 02 Grand Cherokee - ummmmm? http://www.facebook.com/JBrentson

02-03-2010, 09:31 PM	#10
morkable Name: morkable Title: Just Over Broke Status: Not Here Join Date: Jan 2008 Location: Stony Plain, Alberta Member`s Gallery Posts: 5,956	The most important part is the front part of the driveshaft cant hit the ground.. but they prefer if it can keep either side from touching

02-03-2010, 09:32 PM	#11
Dalpilot Name: Dalpilot Title: Joe Nobody! Status: Not Here Join Date: Apr 2006 Location: Austin, Texas Member`s Gallery Posts: 11,373	Yeah, I have seen it tear the crap out of a bed. Remember DJ and Mini Me? __________________ 2017 White f-250 COMPETITIONDIESEL.COM Bringing the best together

02-03-2010, 10:05 PM	#12
IdahoRob Name: IdahoRob Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2006 Member`s Gallery Posts: 2,337	I don't have my rule book here, but think the loop needs to be no more than 8" from the front of the shaft. __________________ Adrenaline Truck Performance "Max'd Out" SoCal Engine, Randy's Trans, DDP 9.36@154 MPH SS legal trim.

02-03-2010, 10:51 PM	#13
joefarmer Name: joefarmer Title: MR. Supreme Overlord Status: Not Here Join Date: Jul 2006 Location: ohio Member`s Gallery Posts: 6,137	I believe 6" from teh center of the yoke. I did both ends. I don't want it shearing at the rear and ejecting under the tires. __________________ brandon'); DROP TABLE Users;-- 1948 Dodge 1.5t 12v RH swap \| 99 F250 12v RE test rkt \| 11 X5 'no soup' \| 08 F250 CR RE swap \| 05 2500 CR 68 standalone firepunk.com

02-11-2010, 05:19 PM	#15
Michael Name: Michael Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2006 Location: Happy Valley, OR Member`s Gallery Posts: 3,411	My tube chassis car has a rear one too, but it is pretty high for the opening to allow for suspension travel. As a result, when I snapped a pinion shaft (allowing the whole yoke to slam around) I took a pretty hard hit into the interior of the car (dented and cut the tinwork, scared the crap out of me). I'd hate to think what would have happened without the double loops. I think they ought to be required if you have a non-stock floorpan. Regards, Michael Pliska __________________ ISSPRO Engineering Manager Under Construction: 1999 Chevy Pro Stock Diesel Pickup LBZ, GT4202R over GT5541R, sponsored by ISSPRO and Chris Alston's Chassisworks 95 F350 CC DRW, Intake, exhaust, chip, injectors, locker, gauges 00 Jetta TDI - tunes, clutch & gauges And a bunch of gassers

02-11-2010, 10:08 PM	#17
DieselWrencher Name: DieselWrencher Title: 6cyl Vette Status: Not Here Join Date: Dec 2006 Location: Mitchellville, Ia Member`s Gallery Posts: 2,886	I put one on both ends of mine. Mainly because the front u joint is right beside me and I don't want to see it explode. __________________ 1968 Corvette 12v Cummins Compounds 47RH 1976 K30 CC SWB 12v 47RH 2000 Excursion VE 24v 47RH 4x4 1972 K30 Longhorn P-Pumped 24v 47RH Compounds

02-12-2010, 10:05 AM	#18
paulb Name: paulb Title: Too Much Time Status: Not Here Join Date: Jul 2006 Location: Klamath Falls, OR Member`s Gallery Posts: 1,673	I use Joe Hellmann's on both of my trucks. I know you use other products by Joe, just wanted to make sure you remembered he made drive shaft loops. Paul __________________ 02 4x4 Auto Mach 6+'s, Drag Comp,Source Automotive Twins, Ultimate Transmission 05 2500 4x4 Auto 3.73 BBI 4's, Smarty Touch, Source Automotive Twins, F1 springs and Cam, Opie's bypass system, Mitusa, PPE Dual Fueler, Ultimate Transmission, Opie shafts,Isspro gauges

02-12-2010, 10:09 AM	#19
Dalpilot Name: Dalpilot Title: Joe Nobody! Status: Not Here Join Date: Apr 2006 Location: Austin, Texas Member`s Gallery Posts: 11,373	Yeah, I might just take it down to Joe, and have him fab a couple right there. __________________ 2017 White f-250 COMPETITIONDIESEL.COM Bringing the best together