leaking tranny fluid

GhettoPop · 12-30-2003, 01:19 PM

After a new clutch, resurfaced flywheel, new pilot & throwout bearings, clutch cable, firewall adjuster, quadrant, and tri-ax shifter, my stang is leaking tranny fluid. Looks like it leaks from the point where the driveshaft connects to the tranny. It then drips down on the center of my x-pipe, making for a smoky mess. And that damn synthetic ATF is expensive! Is this a common problem? How do I repair? Any special tools required? Hope its easy..........thanks in advance

Lethal5Oh · 12-30-2003, 03:18 PM

Sounds like its time for a tailshaft seal. Haynes manual says you can CAREFULY pry it out with a flat screwdriver, but a seal puller would be best, then you just need to drive the new one in straight. It seems to be a common thing if you pull the drive shaft, Now after doing my clutch I had the same problem. Hope this helps.

84LX89GT · 12-31-2003, 04:21 AM

It's fairly common for the tailshaft seal to go bad especially if you have it sitting for awhile and the seal dries up. If it's older, they tend to start coming apart as well from absorbing fluid.

Hethj7 · 01-05-2004, 02:32 AM

I have the same problem on my car, but never have been able to get it to quit. I think some of the teeth back there may be worn or the seat for the seal is not flush, since we have changed the seal twice and it still leaks. I have just gotten used to it now and quit running the expensive tranny fluid

.

GhettoPop · 01-13-2004, 06:23 PM

can this leak be caused by changing my EXTREMELY old tranny fluid with new Redline synthetic?

Hethj7 · 01-13-2004, 07:57 PM

Possibly. If it is like engine oil, sometimes switching to a synthetic will cause a leak to show. The older, thicker fluid may not have been able to get through wherever the leak is now at. However, synthetics will get through and your leaks might show up.

12-30-2003, 01:19 PM	#1
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	leaking tranny fluid After a new clutch, resurfaced flywheel, new pilot & throwout bearings, clutch cable, firewall adjuster, quadrant, and tri-ax shifter, my stang is leaking tranny fluid. Looks like it leaks from the point where the driveshaft connects to the tranny. It then drips down on the center of my x-pipe, making for a smoky mess. And that damn synthetic ATF is expensive! Is this a common problem? How do I repair? Any special tools required? Hope its easy..........thanks in advance __________________ 1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong!

12-30-2003, 03:18 PM	#2
Lethal5Oh Registered Member Join Date: Jun 2002 Location: Portage Posts: 239	Sounds like its time for a tailshaft seal. Haynes manual says you can CAREFULY pry it out with a flat screwdriver, but a seal puller would be best, then you just need to drive the new one in straight. It seems to be a common thing if you pull the drive shaft, Now after doing my clutch I had the same problem. Hope this helps. __________________ '95 GT convert. K&N, C&L mass air meter, Performance distributors sreamin demon coil, dyna mod, live wires, king cobra clutch, flowmaster american thunder exhaust, UPR billet adjustable shift handle, Crane Cams Fireball HI-6 box,underdrive pullies, 255lph fuel pump, UPr short throw shifter, caster camber plates, 03 cobra lower A arms, bullit suspension, cobra front brakes

12-31-2003, 04:21 AM	#3
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	It's fairly common for the tailshaft seal to go bad especially if you have it sitting for awhile and the seal dries up. If it's older, they tend to start coming apart as well from absorbing fluid. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

01-05-2004, 02:32 AM	#4
Hethj7 Mizzou Tigers Join Date: Apr 1999 Location: weston, MO United States Posts: 1,455	I have the same problem on my car, but never have been able to get it to quit. I think some of the teeth back there may be worn or the seat for the seal is not flush, since we have changed the seal twice and it still leaks. I have just gotten used to it now and quit running the expensive tranny fluid . __________________ 2006 Mustang GT 1990 LX GT-40 motor 262 horsepower, 307ft-lbs (sold but forever loved) 1998 Contour SVT Rice Haters Club Member #244

01-13-2004, 06:23 PM	#5
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	can this leak be caused by changing my EXTREMELY old tranny fluid with new Redline synthetic? __________________ 1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong!

01-13-2004, 07:57 PM	#6
Hethj7 Mizzou Tigers Join Date: Apr 1999 Location: weston, MO United States Posts: 1,455	Possibly. If it is like engine oil, sometimes switching to a synthetic will cause a leak to show. The older, thicker fluid may not have been able to get through wherever the leak is now at. However, synthetics will get through and your leaks might show up. __________________ 2006 Mustang GT 1990 LX GT-40 motor 262 horsepower, 307ft-lbs (sold but forever loved) 1998 Contour SVT Rice Haters Club Member #244

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