Leaking Pinion Seal - ZR-1 Net Registry Forums

rosseich · 12-30-2023

I just purchased a '95 (white/black) with 9,200 miles. Drove it home from the dealership and the rear pinion seal is leaking. I believe 4:10 gears were installed at some point. The dealership shop just replaced the seal in November so I assume there must be another issue. I'm unsure what gear lube was installed. The car drives/runs great and the rear diff does not make noise.

Any suggestions? Thanks for your help!

AlbanyBrian · 12-30-2023

One of my winter projects is to replace the pinion seal on my 1993. I posted about it on this forum, https://www.zr1.net/forum/showthread.php?t=35020
It may help with some of your questions. I also post this on the Corvette Forum and got some feedback that provided some insite to the vintage parts on my car.
Brian

WARP TEN · 12-31-2023

Congratulations on your '95! Since you are now the owner of a old but new to you Z, and since you are fairly close to Chicago, I would strongly recommend contacting Marc Haibeck (www.ZR1specialist.com) in Addison Illinois and consider shipping (or driving) the car to his shop when he can get you in. You probably know him but if not he is the ZR-1 expert around here. Your car is new to you and may be in need of servicing and other things that you might not even think of. When I bought my19,000 mile 2 owner '95, the first thing I did was send it to Marc for a thorough going over. He changed all the fluids, including diff, engine, coolant, etc. checked everything (the serp belt was original and hanging on by a thread, found an alarm system wired in (unknown to me) which he removed, installed new plugs, made sure it was running perfectly and so on. Not very expensive and it was like having a new car. It will be money well spent if you do. Good luck with it! --Bob
Contact:www.zr1specialist.com; 630-458-8427; 430D West Kay Avenue Unit D, Addison, Illinois, 60101-4934 email mhaibeckz@gmail.com

12-30-2023	#1
rosseich Join Date: Dec 2023 Location: Minneapolis Posts: 14	Leaking Pinion Seal I just purchased a '95 (white/black) with 9,200 miles. Drove it home from the dealership and the rear pinion seal is leaking. I believe 4:10 gears were installed at some point. The dealership shop just replaced the seal in November so I assume there must be another issue. I'm unsure what gear lube was installed. The car drives/runs great and the rear diff does not make noise. Any suggestions? Thanks for your help!

12-30-2023	#2
AlbanyBrian Join Date: Feb 2023 Location: Albany, Oregon Posts: 26	Re: Leaking Pinion Seal One of my winter projects is to replace the pinion seal on my 1993. I posted about it on this forum, https://www.zr1.net/forum/showthread.php?t=35020 It may help with some of your questions. I also post this on the Corvette Forum and got some feedback that provided some insite to the vintage parts on my car. Brian

12-31-2023	#3
WARP TEN Join Date: Apr 2007 Location: Lake Bluff, IL Posts: 2,035	Re: Leaking Pinion Seal Congratulations on your '95! Since you are now the owner of a old but new to you Z, and since you are fairly close to Chicago, I would strongly recommend contacting Marc Haibeck (www.ZR1specialist.com) in Addison Illinois and consider shipping (or driving) the car to his shop when he can get you in. You probably know him but if not he is the ZR-1 expert around here. Your car is new to you and may be in need of servicing and other things that you might not even think of. When I bought my19,000 mile 2 owner '95, the first thing I did was send it to Marc for a thorough going over. He changed all the fluids, including diff, engine, coolant, etc. checked everything (the serp belt was original and hanging on by a thread, found an alarm system wired in (unknown to me) which he removed, installed new plugs, made sure it was running perfectly and so on. Not very expensive and it was like having a new car. It will be money well spent if you do. Good luck with it! --Bob Contact:www.zr1specialist.com; 630-458-8427; 430D West Kay Avenue Unit D, Addison, Illinois, 60101-4934 email mhaibeckz@gmail.com __________________ 2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough"