Topic: Gotta a dumb question regarding differential
in Forum: C3 Driveline Components
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The passenger side 1/2 shaft seal at yoke is leaking, what is the name of that seal?
I looked in a couple of corvette parts catalogs and all I can come up with is the pinion seal. My front seal is not leaking, but I had planned on replacing both 1/2 shaft seals and leaving the front.
Another question would be should I replace all (3) in ya'lls opinion while under there and can I find theses seals at NAPA or O'Reilly's for example?
thanks for your help
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corvette440hp
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Duncanville, TX - USA
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
RIK'S has them, as do others, such as ZIP I'm sure Larry at 
would have them, too.
It's gonna be tough to change the pinion(front) seal in the car....not impossible, but close to it! It's also gonna be next to impossible to change the side yoke seal with the diff installed in the car. The yokes are held into the diff from the inside with snap-rings. The diff needs to be separated(opened up) to get to the snap-rings. Soooo...that being the case, I'd suggest removing the diff from the car, and doing all of it at once....
Just my .02
would have them, too.
It's gonna be tough to change the pinion(front) seal in the car....not impossible, but close to it! It's also gonna be next to impossible to change the side yoke seal with the diff installed in the car. The yokes are held into the diff from the inside with snap-rings. The diff needs to be separated(opened up) to get to the snap-rings. Soooo...that being the case, I'd suggest removing the diff from the car, and doing all of it at once....
Just my .02
Joel Adams
C3VR Lifetime Member #56 
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Tat was my plan; however, I dropped the exhaust this morning and noticed the front leaking also. By the time I change out the seals, fluids, gaskets, etc. and hope that I don't mess her up, I am considering buying a rebuilt differential from Eckler's sending my core in for the credit.
The unit is not noisy, acting up, etc. but she is slinging stuff all over the underside of the vehicle. and will fail if I don't act now.
Anyone done the swap out with Eckler's or do you recommend another company for the swap?
The local dude who did my other car is outrageous price wise.
Thanks,
gurtz
Lifetime MemberBelvidere, IL - USA
Joined: 10/24/2004
Posts: 439
Vette(s): 1977 Black T-Top ZZ4 5Sp 16in Wheels
Give Jim Stevens a call at 608-365-0911. His business name is The Corvette Guys, Suspension Specialists. We are working on him for sponsership. I think you will like his prices. Does all the work himself and backs it up. Dick
Whether you rebuild your original diff or go with a swap I'd recommend drilling/tapping a drain plug into it. I plan to do that when I tear into that project on "The Toy" to make changing the fluid a much more pleasant task.
Jim Olson 
"The Toys"...!!! Save the Wave! 
I have used Jim Stevens for rear wheel bearings and spindles, and a complete rear wheel bearing unit. He does good work, ships on time and will back up his work with a warranty.
terntes
Lifetime MemberHOWELL, NJ - USA
Joined: 5/18/2004
Posts: 6812
Vette(s): 1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.
Jim did my diff. Excellent work!!!
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Duntov Motors did mine........had REM treated gears put in, with newer updated Posi........and aircraft quality stub shafts.....good for big time HP.
corvette440hp
in Forum: C3 Driveline Components
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