How to remove inner seal in speedometer gear housing?

[BigFlo]

How do you remove the snap ring that holds the inner seal in the speedo gear housing?

 

[493 Mike]

Insert the speedometer pinion into the seal backwards and tip it a little sideways to pop it and the seal out together. Note the lip on the seal faces inward. I use a 11/32 " nut driver to push the seal in followed by the snap ring. The ring is only using its expanding force/friction to hold the seal in, there is no snap ring groove.
Mike

 

[BigFlo]

Aha - thought there was a groove for the snap ring. Thanks!!

 

[dadsbee]

I just used a dental pick!

And do me a favour and get that ring off while working in the shop.... I have a buddy that cauterized his finger off on a starter lug and a father in law that lost 1/2 his finger in a machine all because they got married...

 

[BigFlo]

I ended up using a dental pick also, once I knew there was no groove. Inserting the pinion backwards didn’t work for me or I was doing it wrong.

I just used a dental pick!

And do me a favour and get that ring off while working in the shop.... I have a buddy that cauterized his finger off on a starter lug and a father in law that lost 1/2 his finger in a machine all because they got married...

Noted on the ring - just habit. I wear gloves and took them off to take the picture.

 

[LB0442]

Yup just a slip ring with slight tension on it. I used to work at a GM dealer rebuilding automatics and in the late 80's they had a lip seal in some of the cars, came with all the overhaul kits. I believe it is for late 80's camaro, don't have a part number right now. I would throw all the extra seals/stuff in a box.

I started putting them in chryslers, they fit perfect, with little oil they push in snug by hand. They have a spring loaded lip so they seal a lot better. Note can only use them on steel gears, chews the plastic one up quick. I think the red ones are GM and the black ones are aftermarket?

You have to watch how far you push it in, just enough to cover the first surface on the gear. I have one in my 1957 international 300 utility tach drive. Zero leaks.

 

[LB0442]

Here is an eBay ad for one.
GM 200-4R Speedometer Driven Gear Adapter Housing 0-ring & Seal Kit--1981- 1990 | eBay