Need help finding 700R4 rear seal
Thread Starter
Racer
Joined: Nov 2006
Posts: 420
Likes: 0
From: Sierra Madre California
Need help finding 700R4 rear seal
Hi guys,
I have an '88 vert (auto trans) with a leaking rear seal. Does anyone know what the original part# is and where I might look for one? Don't want cheap Chinese stuff with this part; would really like to find AC Delco or similar quality.
Any input would be greatly appreciated.
I have an '88 vert (auto trans) with a leaking rear seal. Does anyone know what the original part# is and where I might look for one? Don't want cheap Chinese stuff with this part; would really like to find AC Delco or similar quality.
Any input would be greatly appreciated.
Team Owner
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Hi guys,
I have an '88 vert (auto trans) with a leaking rear seal. Does anyone know what the original part# is and where I might look for one? Don't want cheap Chinese stuff with this part; would really like to find AC Delco or similar quality.
Any input would be greatly appreciated.
I have an '88 vert (auto trans) with a leaking rear seal. Does anyone know what the original part# is and where I might look for one? Don't want cheap Chinese stuff with this part; would really like to find AC Delco or similar quality.
Any input would be greatly appreciated.
Thread Starter
Racer
Joined: Nov 2006
Posts: 420
Likes: 0
From: Sierra Madre California
Thanks for the input. The problem is that the local auto parts stores always seem to sell the Chinese stuff, and the local dealers mark their prices up 2-3 times over online pricing. I think that I can find the ACDelco seal if I can get the GM parts number. The original factory parts book (which I have), for whatever reason, doesn't include a part number for the seal. A bit frustrating.
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Find either a National or BCA seal. Have you tried a NAPA store or their online store? Rockauto carries a number of rear seals from AC Delco and Victor Reinz or SKF. But the problem with online ordering is that the shipping costs will be much higher than the part itself.
Same with buying at a GM dealership. The seal itself is cheap; you're paying the markup.
Some GM part numbers do change over the years. The GM part number originally assigned to a seal back in '88 could very well have been superseded a few times over the years. But a good parts guy at a dealership will be able to come up with one. And that gets you the current part number.
Same with buying at a GM dealership. The seal itself is cheap; you're paying the markup.
Some GM part numbers do change over the years. The GM part number originally assigned to a seal back in '88 could very well have been superseded a few times over the years. But a good parts guy at a dealership will be able to come up with one. And that gets you the current part number.
Team Owner
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
8673526 will get you a GM or ACD seal, at any auto parts store an equivalent will. If the box has a country of origin on it you don't like then pass. 4583, 9613S, or 15041 will get you the appropriate after-market or a brand that they carry.
If your transmission has the output shaft sleeve and o-ring then a GM or ACD 3764601 will get you that o-ring.
If someone offers you a seal with a boot you do not want that. There's no room for the boot in a C4 application.
If your transmission has the output shaft sleeve and o-ring then a GM or ACD 3764601 will get you that o-ring.
If someone offers you a seal with a boot you do not want that. There's no room for the boot in a C4 application.
Last edited by WVZR-1; Apr 27, 2014 at 09:04 PM.
