Speedo Quit - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**'68OrangeSunshine** · 07-11-2009, 07:40 AM

Thursday night I pumped about 12 pints of GL-5 80-90 weight gear oil into 3 things, my rearend, the NP205 Xfer Case and the SM 465 tranny. While filling the 205, I saw the coupler for the speedometer cable was loose, with the
square-tipped end just barely in the tranny fitting.
['71 GMC Jimmy K/1500 [K/5] -- 350 V8, SM465, NP205, Corp 12 Bolt 3.73 w/ factory posi].
The speedometer had been working OK, maybe fluttering at freeway speeds, but otherwise normal. So I was surprized to see it loose.
Friday, on a run to the supermarket, I noticed I had no MPH indicator. I guess the speedo cable is broken.

07-11-2009, 07:40 AM	#1
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,504	Speedo Quit Thursday night I pumped about 12 pints of GL-5 80-90 weight gear oil into 3 things, my rearend, the NP205 Xfer Case and the SM 465 tranny. While filling the 205, I saw the coupler for the speedometer cable was loose, with the square-tipped end just barely in the tranny fitting. ['71 GMC Jimmy K/1500 [K/5] -- 350 V8, SM465, NP205, Corp 12 Bolt 3.73 w/ factory posi]. The speedometer had been working OK, maybe fluttering at freeway speeds, but otherwise normal. So I was surprized to see it loose. Friday, on a run to the supermarket, I noticed I had no MPH indicator. I guess the speedo cable is broken. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not. Last edited by '68OrangeSunshine; 07-11-2009 at 07:41 AM.



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