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#1 |
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Speedo leak
HI ALL I HAVE GMC JIMMY 4x4 1972 There is an Speedo leak . Is there a way to solve this problem ? Thanks
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#2 |
Senior Member
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Location: So central coast, CA
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Re: Speedo leak
Try pulling the Driven Gear Speedometer Sleeve. There should be an O-ring on the bottom between it and the transfer case. I am in the middle of tracking one down right now for mine. Goes where the arrow points.
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#3 |
Carpe manana
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Location: Eau Claire, WI
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Re: Speedo leak
Motor City K5 has what you guys need - It's the inner seal. Easy to press out the old one and press in the new.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#4 |
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Re: Speedo leak
Thank you guys, I would like to install it at home. Is there an installation video?
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#5 | |
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Re: Speedo leak
Quote:
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#6 | |
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Re: Speedo leak
Quote:
I think that this is the most appropriate solution in my opinion instead of the complete jaw, but what is the O-ring measurement?
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#7 | |
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Re: Speedo leak
Quote:
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#8 |
Carpe manana
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Re: Speedo leak
Mine went in fine and immediately fixed the leak.
Just remembered this: Torqueking.com sells a new speedometer drive adapter nut that has a new sleeve installed. They are a good source for NP205 parts.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() Last edited by DeadheadNM; 05-22-2023 at 09:20 PM. |
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#9 |
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Re: Speedo leak
I am still at this stage haha I searched for special socket It’s a thin socket and did not find it to unlock this part.
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Last edited by a Good Man; 05-23-2023 at 03:05 PM. |
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#10 |
Carpe manana
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Re: Speedo leak
Use a 12 point socket it will fit
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#11 |
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Re: Speedo leak
Thank you sir, the job has been completed successfully
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#12 |
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Re: Speedo leak
You bet - happy to hear that's fixed and thanks for the update.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#13 | |
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Re: Speedo leak
Quote:
I am very happy to learn from you. I was able to make a special Socket .
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#14 |
Carpe manana
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Re: Speedo leak
You WIN! That's awesome.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#15 |
BlahBlahBlah
Join Date: Feb 2002
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Re: Speedo leak
Wow, that's very cool you can make your own tools. Nicely done!
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#16 |
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Re: Speedo leak
Thank you all . I also suspect this speedometer ratio adapter leaking as well . Would I like to exchange it for a new one . Where can I get a new one?
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Last edited by a Good Man; 05-29-2023 at 08:00 AM. |
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#17 |
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Re: Speedo leak
4 screws and it opens. You can clean and replace the grease inside. The gaskets is most likely trash. I resealed mine using a very thing line of silicone.
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#18 | |
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Re: Speedo leak
Quote:
They assembled the one in use on my Blazer and with US parts. I'm extremely pleased with their work. Heck, get a new speedometer cable too ![]()
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#19 |
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Re: Speedo leak
I don't know how to thank you guys. I'm still learning a lot from you
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#20 | |
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Re: Speedo leak
Quote:
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#21 | |
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Re: Speedo leak
Quote:
If he leaks again, I will burn the truck hahaha
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#22 | |
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Re: Speedo leak
Quote:
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#23 |
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Re: Speedo leak
We have an old Arabic proverb that says (the last remedy for the ironing problem) I will replace everything new. Thank you all
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#24 |
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Re: Speedo leak
It has been installed and I hope it will not leak again.
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#25 |
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Re: Speedo leak
Nice. Let us know how it works. Inshallah, no leak
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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