Speedo sender on NP205 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

skoffice · 08-05-2010, 10:56 PM

My dad's 71 K10 is leaking T-case oil real bad from the speedo sender. Anyone have an exploded view and know of a place to get the seals for it? Its drivin me nuts! Thanks guys

OrrieG · 08-05-2010, 11:57 PM

Look at this, looks like just an o ring on the speedo cable. Google search is a wonderful thing.

http://www.google.com/imgres?imgurl=...ed=0CBwQ9QEwAg

skoffice · 08-06-2010, 12:26 AM

The one I have looks a lot different than that. It's a big aluminum blocky looking thing that looks like it would have a couple different seals in it. I'll try to take a pic of it tomorrow morning.

**Stocker** · 08-06-2010, 01:11 AM

Sounds like you have an adapter (for correcting speedo reading due to re-gearing).

skoffice · 08-06-2010, 01:39 AM

Now that's what I was thinking by the look of it, kind of offset too like it would be geared. This thing has had tires very close to stock when my dad got it 30+ years ago (2nd owner) and he has put 31's on it since, but I know he never had an adapter installed. Should I just get a new one if that's the case? Who sells a good adapter?

AJs72K5 · 08-07-2010, 07:13 PM

Here's what you need to fix it --> link

skoffice · 08-09-2010, 01:22 AM

Awesome! Thank you that's exactly what I was looking for!

08-05-2010, 10:56 PM	#1
skoffice Registered User Join Date: Apr 2007 Location: Elk Grove, CA Posts: 375	Speedo sender on NP205 My dad's 71 K10 is leaking T-case oil real bad from the speedo sender. Anyone have an exploded view and know of a place to get the seals for it? Its drivin me nuts! Thanks guys __________________ 1964 C10 Shortened Shortbed Cammed LQ9 P&P 1967 C10 Trophy Truck BB 438 (soon to be worked on again)

08-05-2010, 11:57 PM	#2
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: Speedo sender on NP205 Look at this, looks like just an o ring on the speedo cable. Google search is a wonderful thing. http://www.google.com/imgres?imgurl=...ed=0CBwQ9QEwAg __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project

08-06-2010, 12:26 AM	#3
skoffice Registered User Join Date: Apr 2007 Location: Elk Grove, CA Posts: 375	Re: Speedo sender on NP205 The one I have looks a lot different than that. It's a big aluminum blocky looking thing that looks like it would have a couple different seals in it. I'll try to take a pic of it tomorrow morning. __________________ 1964 C10 Shortened Shortbed Cammed LQ9 P&P 1967 C10 Trophy Truck BB 438 (soon to be worked on again)

08-06-2010, 01:11 AM	#4
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,572	Re: Speedo sender on NP205 Sounds like you have an adapter (for correcting speedo reading due to re-gearing). __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay

08-06-2010, 01:39 AM	#5
skoffice Registered User Join Date: Apr 2007 Location: Elk Grove, CA Posts: 375	Re: Speedo sender on NP205 Now that's what I was thinking by the look of it, kind of offset too like it would be geared. This thing has had tires very close to stock when my dad got it 30+ years ago (2nd owner) and he has put 31's on it since, but I know he never had an adapter installed. Should I just get a new one if that's the case? Who sells a good adapter? __________________ 1964 C10 Shortened Shortbed Cammed LQ9 P&P 1967 C10 Trophy Truck BB 438 (soon to be worked on again)

08-07-2010, 07:13 PM	#6
AJs72K5 Registered User Join Date: Nov 2007 Location: South Tx Posts: 1,083	Re: Speedo sender on NP205 Here's what you need to fix it --> link __________________ - AJ Gray Matter Build - 1972 K5 with some stuff

08-09-2010, 01:22 AM	#7
skoffice Registered User Join Date: Apr 2007 Location: Elk Grove, CA Posts: 375	Re: Speedo sender on NP205 Awesome! Thank you that's exactly what I was looking for! __________________ 1964 C10 Shortened Shortbed Cammed LQ9 P&P 1967 C10 Trophy Truck BB 438 (soon to be worked on again)



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