Dont let this happen!!

Coupe5oh · 02-19-2002, 11:03 PM

This is'nt new info to some of you, but keep an eye on driveshaft bolts, My car developed a bad vibration on deceleration, i checked under the car to inspect u-joints, and noticed all 4 of my d/s fasteners backed out, almost all the way,(finger tight) i dont know how it hung on while lauching hard as he11 that night before.

Chevysucks · 02-20-2002, 11:30 PM

hey you might of just helped me out. the other day i was on the highway and was comming down from 90 something mph and the car was vibrating and it only did it when i was deaccelerating. I am definiatly going to check those bolts tomarrow.
thanks

Dark_5.0 · 02-20-2002, 11:53 PM

Yeah you got lucky that you caught it when you did....It would have sucked if it happened at the track.

shovelnose · 02-21-2002, 03:24 AM

I've had the same thing happen to me. Just after the track as well. I'll take some luck once in awhile.

Mach 1 · 02-21-2002, 06:04 AM

yeah, its a good idea to crank those babies down after swapping driveshafts. You need to get a pipe and put it over the end of a box end wrench to get some real tourqe on them.

fordgasm · 02-21-2002, 07:25 AM

Ditto to Mach 1 comments, I have a 12mm wrench with a slight bend to it from tightening mine with a pipe over the wrench....I would also add a little locktite to the fasteners.

Mach 1 · 02-21-2002, 03:14 PM

lol..yeah, my wrench has a slight bend in it also....dam cheap craftsman wrenches....

89 ATI · 02-21-2002, 03:43 PM

I don't care how tight you get them. If you don't use some locktite they will come loose.

Coupe5oh · 02-21-2002, 04:28 PM

Yea, i didnt have any locktite, but i think i will pick some up, i knew that was probaly the cause, along with some 5k launches on sticky tires.

Mach 1 · 02-21-2002, 11:55 PM

Quote:

Originally posted by 89 ATI
I don't care how tight you get them. If you don't use some locktite they will come loose.

That is absolutely not true at all. I have had many driveshafts off and never used locktite on the bolts, and have never had one come loose.

Make the bolts tight enough, and you shouldnt have any problems. The problem is getting enough leverage and torque on the bolts since they arent the easiest to get a socket or wrench on. If you put a open pipe on a wrench, and get them nice and tight, they will not come loose. You dont have to kill them, but put some good torque on them.

kevknotch88 · 02-22-2002, 07:14 AM

I am against locktite also. Ever worked on a car where the previous mechanic (haha) used locktite like wd-40. It aint fun.

Fox Body · 02-22-2002, 10:18 AM

Everytime I'm under the car (oil change or whatever) I check most bolts under the car, including driveshaft bolts.

One thing I kinda don't understand though, why isn't it made so nuts (and maybe a lock washer) go on the other end of the bolts? Looks like there is enough space to fit nuts in there. I dunno, to me it just feels like there'd be a little more assurance of them not turning themselves out. I never really had a problem with them coming out, they always seem tight as I left them when I check them, but I've wondered about that question.

z3beemer · 02-22-2002, 09:48 PM

If you notice when you take the original bolts out they have a thread sealant (locktite) on them. I would highly recommend cleaning the bolts up on a wire wheel, loctite them and torque them to the manufactures spec. Depending on what type of locktite you use will determine how hard they are to remove later. Red locktite is considered permanent (or really, really tough to remove), blue is for bolts you want to be able to remove. Over torqueing the bolts puts undo stress on the bolts and make them more prone to snapping under load.

Godslayer · 02-22-2002, 10:41 PM

I agree with Beemer. I always use blue locktite and they have never backed out at all. I've never used a pipe to get them tight. I however have used a pipe or two trying to get them out

Overtorqing the bolts will make them weaker and hurt their tensile strength.

On a side note, when I bought new bolts from Ford, they had a thread selaer on them already.

JMHO.

Mach 1 · 02-22-2002, 11:40 PM

Anybody know what the torque spec. is on the driveshaft bolts?

As far as Im concerned, if you need a pipe to remove them, installing them with a pipe isnt going to hurt them. Like I said already, dont kill them, but the pipe gives you the extra leverage you need to make sure they are snug enough to not back out on you.

02-19-2002, 11:03 PM	#1
Coupe5oh Registered Member Join Date: Nov 2001 Location: SanAntonio, Tx Posts: 734	Dont let this happen!! This is'nt new info to some of you, but keep an eye on driveshaft bolts, My car developed a bad vibration on deceleration, i checked under the car to inspect u-joints, and noticed all 4 of my d/s fasteners backed out, almost all the way,(finger tight) i dont know how it hung on while lauching hard as he11 that night before. __________________ Police package 5spd 90 Lx, Stock original motor, 3.27grs, BM fan, fms 10.5 clutch, D&D quadrant, and adjuster, ADS chip, 180 stat, mac cai, mac h-pipe, mac subframe connectors, ASP crank pulley, ripper shifter, 26x10.5 M/T sport pros welds. 246 hp according to analyzer Race weight: 3,120 E.t-13.57 with 26x10.50's e.t. streets. 1.88 60' mph- 99.92 mph

02-20-2002, 11:30 PM	#2
Chevysucks Registered Member Join Date: Mar 2000 Location: Stroudsburg, PA, USA Posts: 150	wow hey you might of just helped me out. the other day i was on the highway and was comming down from 90 something mph and the car was vibrating and it only did it when i was deaccelerating. I am definiatly going to check those bolts tomarrow. thanks __________________ 88 Stang 306 ci. GT Mustang heads- ported and polished/milled---Soon to be AFR 185cc 1.7 crane roller rockers/extra hardened pushrods FRPP X-303 Cam Stock Intake-1 inch intake spacer BBK Cold Air Induction Stock Injectors--going to 24 pounders BBK Full Length Headers Mac 2.5 inch Cat-Back 8 Point Cage Sub Frame Connectors World Class T-5 Steeda Shift Cable,Quadrant,Firewall adjuster King Cobra Clutch Pro 5.0 Shifter Alunimum Driveshaft/ Drive shaft loop Kenny Brown suspension 3.55 gears

02-20-2002, 11:53 PM	#3
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Yeah you got lucky that you caught it when you did....It would have sucked if it happened at the track. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

02-21-2002, 03:24 AM	#4
shovelnose Registered Member Join Date: Oct 2000 Location: Ontario, Canada Posts: 234	I've had the same thing happen to me. Just after the track as well. I'll take some luck once in awhile. __________________ 82 Mercury Capri 302, Comp. Cams, Tremec 3550, 3.73's, 12.8@106 N/A Kevin's Capri Kevin's Mustang

02-21-2002, 06:04 AM	#5
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	yeah, its a good idea to crank those babies down after swapping driveshafts. You need to get a pipe and put it over the end of a box end wrench to get some real tourqe on them. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

02-21-2002, 07:25 AM	#6
fordgasm Registered Member Join Date: Jan 1999 Location: Clayton, North Carolina, USA Posts: 803	Ditto to Mach 1 comments, I have a 12mm wrench with a slight bend to it from tightening mine with a pipe over the wrench....I would also add a little locktite to the fasteners. __________________ fordgasm CLICK HERE to see my 87 GT

02-21-2002, 03:14 PM	#7
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	lol..yeah, my wrench has a slight bend in it also....dam cheap craftsman wrenches.... __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

02-21-2002, 03:43 PM	#8
89 ATI Registered Member Join Date: Sep 2000 Location: Lafayette, Indiana Posts: 120	I don't care how tight you get them. If you don't use some locktite they will come loose.

02-21-2002, 04:28 PM	#9
Coupe5oh Registered Member Join Date: Nov 2001 Location: SanAntonio, Tx Posts: 734	Yea, i didnt have any locktite, but i think i will pick some up, i knew that was probaly the cause, along with some 5k launches on sticky tires. __________________ Police package 5spd 90 Lx, Stock original motor, 3.27grs, BM fan, fms 10.5 clutch, D&D quadrant, and adjuster, ADS chip, 180 stat, mac cai, mac h-pipe, mac subframe connectors, ASP crank pulley, ripper shifter, 26x10.5 M/T sport pros welds. 246 hp according to analyzer Race weight: 3,120 E.t-13.57 with 26x10.50's e.t. streets. 1.88 60' mph- 99.92 mph

02-22-2002, 07:14 AM	#11
kevknotch88 Registered Member Join Date: Jun 2001 Location: Athens, WV Posts: 29	I am against locktite also. Ever worked on a car where the previous mechanic (haha) used locktite like wd-40. It aint fun. __________________ kevknotch88 1988 Coupe 135k BBK uneq, X-Pipe, mac 2.5, pullies, southsides, alum d/s, 3:08's, Tremec, TFS Stage 1 cam, 65 TB, Mass Air, Gt-40 U&L = 13.645 @ 104.61

02-22-2002, 10:18 AM	#12
Fox Body Mustang Maniac Join Date: Sep 2000 Location: GA, U.S.A Posts: 2,266	Everytime I'm under the car (oil change or whatever) I check most bolts under the car, including driveshaft bolts. One thing I kinda don't understand though, why isn't it made so nuts (and maybe a lock washer) go on the other end of the bolts? Looks like there is enough space to fit nuts in there. I dunno, to me it just feels like there'd be a little more assurance of them not turning themselves out. I never really had a problem with them coming out, they always seem tight as I left them when I check them, but I've wondered about that question. __________________ 351W-powered 1979 Ford Mustang Ghia notchback '79 Video @ Idle Stock 5.8L under 4" cowl 'glass hood, C4 w/ Transgo shift kit, Holley 750 cfm, Edelbrock Performer RPM intake; Fluidyne Al radiator, Flexalite 175 electric fan, 1 5/8" MAC shorty headers, FRPP Al driveshaft; S&W 6-point cage; 2.5" Off road H-pipe, 2-chamber Flowmasters, 8.8" Rear w/ 3.55s; Weld wheels (15x6;15x8), Front: 225/60/15, Rear: 275/50/15 Nitto NT 555R Drag Radials; 14 x 4” K&N X-stream air filter. '92 GT (5-speed) Small In Car Video Stock 5.0L, 2-chamber Flowmasters, MAC CAI, Tri-Ax, Al pedals... "Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body

02-22-2002, 09:48 PM	#13
z3beemer Registered Member Join Date: Apr 2001 Location: Valparaiso, IN USA Posts: 56	If you notice when you take the original bolts out they have a thread sealant (locktite) on them. I would highly recommend cleaning the bolts up on a wire wheel, loctite them and torque them to the manufactures spec. Depending on what type of locktite you use will determine how hard they are to remove later. Red locktite is considered permanent (or really, really tough to remove), blue is for bolts you want to be able to remove. Over torqueing the bolts puts undo stress on the bolts and make them more prone to snapping under load.

02-22-2002, 10:41 PM	#14
Godslayer Registered Member Join Date: Mar 1999 Location: Largo, FL USA Posts: 274	.... I agree with Beemer. I always use blue locktite and they have never backed out at all. I've never used a pipe to get them tight. I however have used a pipe or two trying to get them out Overtorqing the bolts will make them weaker and hurt their tensile strength. On a side note, when I bought new bolts from Ford, they had a thread selaer on them already. JMHO. __________________ Negative Mustang @ present time.

02-22-2002, 11:40 PM	#15
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	Anybody know what the torque spec. is on the driveshaft bolts? As far as Im concerned, if you need a pipe to remove them, installing them with a pipe isnt going to hurt them. Like I said already, dont kill them, but the pipe gives you the extra leverage you need to make sure they are snug enough to not back out on you. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
O\R H-pipe finally screwed me over, this ever happen to you?	96_4.6	Modular Madness	10	11-23-2002 10:32 PM
What do you think will happen to cars in the future	7000rpmisheaven	Blue Oval Lounge	8	05-16-2002 07:55 AM
Who would happen to know these specs?	HondaSpanker	Classic Mustangs	5	03-21-2002 09:55 PM
Don't let this happen to you...	cyberstang5.0	Windsor Power	7	03-06-2002 04:05 PM
what happen with my NOS?	5000cc	Windsor Power	15	07-11-2001 05:36 PM