Speedometer Angle Drive, Troubleshooting Options

[SteveNMaine]

When I turn either the male or female end of the speedometer angle drive the opposite end doesn't turn, they seem to be disconnected. Is this normal?

[ClayPerrine]

When I turn either the male or female end of the speedometer angle drive the opposite end doesn't turn, they seem to be disconnected. Is this normal?

Nope. If that is happening, the angle drive is junk.

[Jamie]

When I turn either the male or female end of the speedometer angle drive the opposite end doesn't turn, they seem to be disconnected. Is this normal?

This may be the source of my dead speedometer as well. I'm waiting for the speedometer head to be returned from repair before going further. I'm wondering if removing the angle drive allows trans oil to leak out? (IMG:style_emoticons/default/hissyfit.gif)

[Jamie]

When I turn either the male or female end of the speedometer angle drive the opposite end doesn't turn, they seem to be disconnected. Is this normal?

Nope. If that is happening, the angle drive is junk.

I found many available on eBay, and a small drive gear on shaft listed as well, is this part inside the drive that is possible source of the failure? (IMG:style_emoticons/default/confused24.gif)

[Ron914]

@SteveNMaine
I replaced replaced my speedometer angle drive recently because it was leaking .
Bruce Stone sells one with the proper O ring vs the one 914Rubber sells ,I purchased the 914 Rubber one and have had no issues but it does have a smaller O ring .
My connection from the end of the speedo cable also was turning but now it does not turn now so replacement seemed to fix this as Clay mentioned .
You also might check the 10mm bolt for tightness. Also the 26mm nut

[ClayPerrine]

When I turn either the male or female end of the speedometer angle drive the opposite end doesn't turn, they seem to be disconnected. Is this normal?

Nope. If that is happening, the angle drive is junk.

I found many available on eBay, and a small drive gear on shaft listed as well, is this part inside the drive that is possible source of the failure? (IMG:style_emoticons/default/confused24.gif)

Be careful.. the 911 angle drive and the 914 angle drive look very similar. But if you try to put a 911 angle drive in a 914, the speedometer won't work. The 911 drive turns backwards from a 914 drive.

[Jamie]

When I turn either the male or female end of the speedometer angle drive the opposite end doesn't turn, they seem to be disconnected. Is this normal?

Nope. If that is happening, the angle drive is junk.

I found many available on eBay, and a small drive gear on shaft listed as well, is this part inside the drive that is possible source of the failure? (IMG:style_emoticons/default/confused24.gif)

Be careful.. the 911 angle drive and the 914 angle drive look very similar. But if you try to put a 911 angle drive in a 914, the speedometer won't work. The 911 drive turns backwards from a 914 drive.

Clay et al, how to tell the difference when buying used from a source like eBay? I assume some sellers won't know original source, and is there any external part number or other distinguishing characteristic for ID of correct replacement? (IMG:style_emoticons/default/confused24.gif)

[Jamie]

@SteveNMaine
I replaced replaced my speedometer angle drive recently because it was leaking .
Bruce Stone sells one with the proper O ring vs the one 914Rubber sells ,I purchased the 914 Rubber one and have had no issues but it does have a smaller O ring .
My connection from the end of the speedo cable also was turning but now it does not turn now so replacement seemed to fix this as Clay mentioned .
You also might check the 10mm bolt for tightness. Also the 26mm nut

This is a wonderfully clean looking transmission case! (IMG:style_emoticons/default/blink.gif)

[ClayPerrine]

When I turn either the male or female end of the speedometer angle drive the opposite end doesn't turn, they seem to be disconnected. Is this normal?

Nope. If that is happening, the angle drive is junk.

I found many available on eBay, and a small drive gear on shaft listed as well, is this part inside the drive that is possible source of the failure? (IMG:style_emoticons/default/confused24.gif)

Be careful.. the 911 angle drive and the 914 angle drive look very similar. But if you try to put a 911 angle drive in a 914, the speedometer won't work. The 911 drive turns backwards from a 914 drive.

Clay et al, how to tell the difference when buying used from a source like eBay? I assume some sellers won't know original source, and is there any external part number or other distinguishing characteristic for ID of correct replacement? (IMG:style_emoticons/default/confused24.gif)

There is no visible difference, but the internal gears are different. You have to check the part number.

The part number for a 911 angle drive is : 911 318 029 00
The part number for a 914 angle drive is : 914 318 029 01

If you are buying used, the seller should know what kind of transmission it came from or they need to verify the part number.

[bdstone914]

When I turn either the male or female end of the speedometer angle drive the opposite end doesn't turn, they seem to be disconnected. Is this normal?

Nope. If that is happening, the angle drive is junk.

I found many available on eBay, and a small drive gear on shaft listed as well, is this part inside the drive that is possible source of the failure? (IMG:style_emoticons/default/confused24.gif)

Be careful.. the 911 angle drive and the 914 angle drive look very similar. But if you try to put a 911 angle drive in a 914, the speedometer won't work. The 911 drive turns backwards from a 914 drive.

Clay et al, how to tell the difference when buying used from a source like eBay? I assume some sellers won't know original source, and is there any external part number or other distinguishing characteristic for ID of correct replacement? (IMG:style_emoticons/default/confused24.gif)

The part number is stamped on a disc on the angle drive it should start with 914.

[bdstone914]

When I turn either the male or female end of the speedometer angle drive the opposite end doesn't turn, they seem to be disconnected. Is this normal?

Nope. If that is happening, the angle drive is junk.

I found many available on eBay, and a small drive gear on shaft listed as well, is this part inside the drive that is possible source of the failure? (IMG:style_emoticons/default/confused24.gif)

Be careful.. the 911 angle drive and the 914 angle drive look very similar. But if you try to put a 911 angle drive in a 914, the speedometer won't work. The 911 drive turns backwards from a 914 drive.

Clay et al, how to tell the difference when buying used from a source like eBay? I assume some sellers won't know original source, and is there any external part number or other distinguishing characteristic for ID of correct replacement? (IMG:style_emoticons/default/confused24.gif)

The part number is stamped on a disc on the angle drive it should start with 914.

Never assume an eBay seller knows thary know what they are selling. It is more often that they don't know or tell you.

[barefoot]

yes, it well leak tranny fluid if you remove the angle drive (IMG:style_emoticons/default/sad.gif)

[Ron914]

[quote name='Jamie' date='Apr 24 2025, 11:49 AM' post='3202515']
[quote name='SteveNMaine' post='3202506' date='Apr 24 2025, 07:21 AM']
When I turn either the male or female end of the speedometer angle drive the opposite end doesn't turn, they seem to be disconnected. Is this normal?
[/quote]
This may be the source of my dead speedometer as well. I'm waiting for the speedometer head to be returned from repair before going further. I'm wondering if removing the angle drive allows trans oil to leak out? (IMG:style_emoticons/default/hissyfit.gif)
[/quote
@Jamie
As barefoot mentioned it will leak . I noticed my angle drive was leaking shortly after I had finished replacing my transmission oil and did not want to drain it so when I changed the angle drive I did as others here mentioned . If you leave the front of the car on ground and raise the rear of the car it's possible to remove the drive gear without loosing the fluid . I backed my car onto some ramps I had which gave me room to work and had a pan and rags just in case but only lost an ounce or two . it was a fairly easy job to do . I did a post on mine when I changed it here on the forum ,look for it I added pictures which might be helpful to you. Just go to search topics and enter speedometer angle drive and look for my name. Hope this helps you.

[WFG]

AutoAtlanta alos has the angle drive.
just call George at 1 770 427 2844 ex. 111