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Author Topic: 700R4 speedometer adaptor seal  (Read 2842 times)

Offline Fairlane514

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700R4 speedometer adaptor seal
« on: July 23, 2012, 08:06:45 pm »
Anyone have any luck with part numbers for the "O" ring and the small seal?

I have NAPA, Oreilly, Advance auto and Auto Zone near me. 
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Online bd

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Re: 700R4 speedometer adaptor seal
« Reply #1 on: July 23, 2012, 08:43:30 pm »
Speedo sleeve O/R, GM/AC Delco P/N-15552872
Speedo driven gear seal, GM/AC Delco P/N-1361618

Be sure to check the driven gear and sleeve for wear; that's usually what causes them to leak.
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Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline Fairlane514

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Re: 700R4 speedometer adaptor seal
« Reply #2 on: July 23, 2012, 09:30:27 pm »
Thanks for the numbers, hopefully I will have it pulled tomorrow and I will know which drive gear I need.

Is the sleeve a replaceable part, or do I need to get the whole adaptor assembly?
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Online bd

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Re: 700R4 speedometer adaptor seal
« Reply #3 on: July 23, 2012, 10:01:32 pm »
The sleeve (driven gear support) is serviceable.  There are two P/Ns with different offsets, depending on the number of teeth on (diameter of) the driven gear.
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Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)
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