help rear end leaking.

mustanginca · July 6th, 2008, 09:15 PM

My rear end is leaking out the driveshaft input. What seal is that and how easy of a fix is it? I don't have time to do it today. So where can I fill it up to get it by until next weekend? I bought the oil I just need to know where to put it thanks.

mustanginca · July 6th, 2008, 09:27 PM

pinion seal? sound right? I read there is also a vent that could be clogged? Any idea how long to change a pinion seal and where's this vent?

RStrick0352 · July 6th, 2008, 09:32 PM

That seal is called a pinion seal. Its easy to replace. Behind where your drive shaft connects to that flange there is a huge nut that holds the flange on. Use an impact if you got it to take that nut off pull the flange out, you'll see how your left with that disc looking thing with a hole in it that the flange just came out of. That is the seal, ideally you'd have a pinion seal puller tool to remove it but if you dont a pry bar or anything you can slip in there with enough leverage to pull it out will work. Once you've removed that take your new one and tap it into place till it resembles how the old one was before you pulled it. Now just everse the process, just be careful when tightening that large nut back down because these cars used a crush sleeve from the factory to set the pinion gear depth so tighten it down to PFT just dont get crazy.

mustanginca · July 6th, 2008, 09:34 PM

sweet thanks. You know the torque rating is for that?

RStrick0352 · July 6th, 2008, 09:37 PM

No sure dont sorry. I know a lot of guys on this forum who install their on Spydershaft driveshafts which require the removal of that nut. Check out Leonardracing.com. I bet it will have it listed in the install instructions for that driveshaft. I'll check too.

RStrick0352 · July 6th, 2008, 09:42 PM

125-150 ft lbs according to that site

mustanginca · July 6th, 2008, 10:10 PM

alright wish me luck. I'm gonna try to get it done tonight. I shouldn't have to change the bearing right?

mustanginca · July 6th, 2008, 10:56 PM

hey is the pinion nut reverse thread?

flattusmaximus78 · July 6th, 2008, 11:00 PM

Those things allways go out.

July 6th, 2008, 09:15 PM	#1
mustanginca Regular Join Date: May 2008 Posts: 108	help rear end leaking. My rear end is leaking out the driveshaft input. What seal is that and how easy of a fix is it? I don't have time to do it today. So where can I fill it up to get it by until next weekend? I bought the oil I just need to know where to put it thanks.

July 6th, 2008, 09:32 PM	#3
RStrick0352 Enthusiast 2007 Mustang GT 11.40 @ 121 mph Join Date: Apr 2007 Location: Jacksonville, NC Posts: 660	That seal is called a pinion seal. Its easy to replace. Behind where your drive shaft connects to that flange there is a huge nut that holds the flange on. Use an impact if you got it to take that nut off pull the flange out, you'll see how your left with that disc looking thing with a hole in it that the flange just came out of. That is the seal, ideally you'd have a pinion seal puller tool to remove it but if you dont a pry bar or anything you can slip in there with enough leverage to pull it out will work. Once you've removed that take your new one and tap it into place till it resembles how the old one was before you pulled it. Now just everse the process, just be careful when tightening that large nut back down because these cars used a crush sleeve from the factory to set the pinion gear depth so tighten it down to PFT just dont get crazy. __________________ GT 6sp Grabber Orange For mods check my garage. 349 rwhp, 331 rwtrq Naturally Aspirated 445 rwhp, 495 rwtrq 100 Shot 60ft: 1.74 1/4: 12.15 @ 112.43 N/A 60ft: 1.71 11.40 @ 121.18 100 shot Nitrous

July 6th, 2008, 09:37 PM	#5
RStrick0352 Enthusiast 2007 Mustang GT 11.40 @ 121 mph Join Date: Apr 2007 Location: Jacksonville, NC Posts: 660	No sure dont sorry. I know a lot of guys on this forum who install their on Spydershaft driveshafts which require the removal of that nut. Check out Leonardracing.com. I bet it will have it listed in the install instructions for that driveshaft. I'll check too. __________________ GT 6sp Grabber Orange For mods check my garage. 349 rwhp, 331 rwtrq Naturally Aspirated 445 rwhp, 495 rwtrq 100 Shot 60ft: 1.74 1/4: 12.15 @ 112.43 N/A 60ft: 1.71 11.40 @ 121.18 100 shot Nitrous

July 6th, 2008, 09:42 PM	#6
RStrick0352 Enthusiast 2007 Mustang GT 11.40 @ 121 mph Join Date: Apr 2007 Location: Jacksonville, NC Posts: 660	125-150 ft lbs according to that site __________________ GT 6sp Grabber Orange For mods check my garage. 349 rwhp, 331 rwtrq Naturally Aspirated 445 rwhp, 495 rwtrq 100 Shot 60ft: 1.74 1/4: 12.15 @ 112.43 N/A 60ft: 1.71 11.40 @ 121.18 100 shot Nitrous

July 6th, 2008, 11:00 PM	#9
flattusmaximus78 MM Fanatic 1993 5.ohhhh 14.47 at 96 mph Join Date: Apr 2006 Location: Gatorland Posts: 4,707	Those things allways go out. __________________ exploder top end with 12 psi of v-tech

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July 6th, 2008, 09:27 PM	#2
mustanginca Regular Join Date: May 2008 Posts: 108	pinion seal? sound right? I read there is also a vent that could be clogged? Any idea how long to change a pinion seal and where's this vent?

July 6th, 2008, 09:34 PM	#4
mustanginca Regular Join Date: May 2008 Posts: 108	sweet thanks. You know the torque rating is for that?

July 6th, 2008, 10:10 PM	#7
mustanginca Regular Join Date: May 2008 Posts: 108	alright wish me luck. I'm gonna try to get it done tonight. I shouldn't have to change the bearing right?

July 6th, 2008, 10:56 PM	#8
mustanginca Regular Join Date: May 2008 Posts: 108	hey is the pinion nut reverse thread?

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