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Old 03-18-2024, 03:50 PM   #1
cericd
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Join Date: Jan 2012
Location: Texan, back in TX
Posts: 2,104
Which 3OTT Transmission Do I Have

I have a leak where my speedometer cable attaches to the transmission. It's my understanding that I need to replace the speedometer (bullet) gear housing and o-rings. I need to know which transmission I have so that I can order the right part. How do I go about determining what I've got?

The truck is a base model 1970 C-10 with a 307 and a 3OTT.

Here are a few pics in case they help with identification.
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Chris

My 1970 SWB C/10 - https://67-72chevytrucks.com/vboard/...d.php?t=534872
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