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

spudly · 01-15-2008, 08:29 PM

I think I have this down, but want to make sure I'm not missing something.

My transfercase is leaking at the speedo cable, I know surprise. From reading around it seems the cure is to get a new sleeve for the speedo gear, P/N 326561.

So is there any seal that goes in the top part of the speedo cable, like between the sleeve and the bell part of the cable?

The reason I ask is there seems to have been some sort of seal there that got caught in the speedo cable.

I don't see where else a seal would go since the flat bell end of the cable sits against the top of the sleeve.

SoCal71K20 · 01-19-2008, 11:22 PM

Yeah, that's the right part number. The only seal needed is the one that is attached to sleeve #326561. Good luck.

chipflyer · 01-23-2008, 12:20 AM

Hey Spudly,
So CAl is right on, I had the same leak as you and bought the #326561 sleeve and it completely fixed my leaky Tcase/speedo. It has an internal seal that keeps gear lube from getting to the speedo cable.

Jeff

spudly · 01-23-2008, 02:39 AM

Finally got around to working on it this weekend.

Got the front output seal changed and used sealant on the bolts, there wasn't any on them when I tore it down. Put in the drive shaft I rebuilt. Then swapped out the speedo sleeve.

So far no leaks whatsoever. Now I gotta clean up the driveway

LF_MN_71GMC · 09-23-2009, 05:26 PM

Hey, where are you guys getting the replacement part from? That part number is for which company?

OldCreek · 09-24-2009, 12:14 PM

I went straight to the GM parts counter guy with the part number. I couldn't seem to find an online dealer that could work with that number....

SoCal71K20 · 09-24-2009, 01:03 PM

Get 'em online from Scoggin Dickey Parts Center. For me, it was cheaper that way delivered to my door rather than messin' around at local GM dealers and paying sales tax. Good luck.

LF_MN_71GMC · 09-29-2009, 11:29 PM

I bought mine using this thread's part number at the local GM parts counter and it worked like a champ. Thanks guys, the little bugger was spendy but it stopped the leak.

01-15-2008, 08:29 PM	#1
spudly Registered User Join Date: Dec 2007 Location: Newark, CA Posts: 127	NP205 Speedo Question I think I have this down, but want to make sure I'm not missing something. My transfercase is leaking at the speedo cable, I know surprise. From reading around it seems the cure is to get a new sleeve for the speedo gear, P/N 326561. So is there any seal that goes in the top part of the speedo cable, like between the sleeve and the bell part of the cable? The reason I ask is there seems to have been some sort of seal there that got caught in the speedo cable. I don't see where else a seal would go since the flat bell end of the cable sits against the top of the sleeve.

01-19-2008, 11:22 PM	#2
SoCal71K20 Registered User Join Date: Jan 2002 Location: Lemon Grove, California Posts: 152	Re: NP205 Speedo Question Yeah, that's the right part number. The only seal needed is the one that is attached to sleeve #326561. Good luck.

01-23-2008, 02:39 AM	#4
spudly Registered User Join Date: Dec 2007 Location: Newark, CA Posts: 127	Re: NP205 Speedo Question Finally got around to working on it this weekend. Got the front output seal changed and used sealant on the bolts, there wasn't any on them when I tore it down. Put in the drive shaft I rebuilt. Then swapped out the speedo sleeve. So far no leaks whatsoever. Now I gotta clean up the driveway

09-23-2009, 05:26 PM	#5
LF_MN_71GMC Registered User Join Date: Sep 2009 Location: Isanti, mn Posts: 177	Re: NP205 Speedo Question Hey, where are you guys getting the replacement part from? That part number is for which company?

09-24-2009, 12:14 PM	#6
OldCreek Registered User Join Date: Jan 2007 Location: Central Coast California Posts: 1,029	Re: NP205 Speedo Question I went straight to the GM parts counter guy with the part number. I couldn't seem to find an online dealer that could work with that number.... __________________ 1972 K20 Suburban 5.7/700r4/NP205 Dana 44/H052 Sold 1972 C10 5.3L/4L60E 12bolt 5Lug - Sold 1971 K5 Blazer 6.0L LQ9 4L60E NP205 Dana 44/H052!!! 1970 K3500 1ton CrewCab 8.1L/Allison1000/NP205 Dana 60/14B!!!! - Sold 1988 V30 CCLB 7.4L/TH400/NP205/Dana 60/Dana 70!!! (Sold) 2003 K2500HD 8.1/Allison1000/NP263

01-23-2008, 12:20 AM	#3
chipflyer Registered User Join Date: May 2004 Location: Topeka, Ks Posts: 2,293	Re: NP205 Speedo Question Hey Spudly, So CAl is right on, I had the same leak as you and bought the #326561 sleeve and it completely fixed my leaky Tcase/speedo. It has an internal seal that keeps gear lube from getting to the speedo cable. Jeff __________________ I'm not a pessimist, I'm just optimistic that bad things are going to happen. 1971 Cheyenne Super K10 - tilt, cruise, air, am/fm, tow hooks, factory buckets! 1986 Jeep J10 pickup, - 5.3L Vortec with 4L60e and NP241.

09-24-2009, 01:03 PM	#7
SoCal71K20 Registered User Join Date: Jan 2002 Location: Lemon Grove, California Posts: 152	Re: NP205 Speedo Question Get 'em online from Scoggin Dickey Parts Center. For me, it was cheaper that way delivered to my door rather than messin' around at local GM dealers and paying sales tax. Good luck.

09-29-2009, 11:29 PM	#8
LF_MN_71GMC Registered User Join Date: Sep 2009 Location: Isanti, mn Posts: 177	Re: NP205 Speedo Question I bought mine using this thread's part number at the local GM parts counter and it worked like a champ. Thanks guys, the little bugger was spendy but it stopped the leak. __________________ 1971 GMC 4x4 half ton np 205 1969 chevrolet camaro 1984 K10; 4" lift; sbc; Build link http://67-72chevytrucks.com/vboard/s...d.php?t=647172



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