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11-26-2008, 02:02 AM | #1 |
Registered User
Join Date: Jul 2008
Location: Ault, Colorado
Posts: 862
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NP205 speedo gear replacement
After installing my twin-stick NP205 I find I have no speedometer function. T/case doesn't turn the cable. Not sure if this newly rebuilt t/case has a speedo gear (which would make sense).
Can anyone tell me,...will I find the speedometer gear within a "retainer" that the speedo cable screws onto? Any pics of the gear and retainer? Emailed stephen@offroaddesign, but I'm sure they're busy as hell with this economy! Thanks, Todd. |
11-27-2008, 01:14 AM | #2 |
Registered User
Join Date: Jul 2008
Location: Ault, Colorado
Posts: 862
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Re: NP205 speedo gear replacement
Hello!
Anybody replaced a speedometer gear in an NP205? Todd. |
11-27-2008, 07:54 AM | #3 |
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Join Date: May 2007
Location: CO
Posts: 475
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Re: NP205 speedo gear replacement
IIRC, the cable should plug into an adapter, then into the T case. Lemme see if I can find that pic of the adapter...
Here you go: http://67-72chevytrucks.com/vboard/s...d.php?t=313774 Those gears inside should be all metal if I recall. I had to have the speedo shop regear mine after a mishap with my transfer case a few years ago. *Edit* I see you're probably after the hard gear inside. The best thing I can tell you there is if the gear needs replaced, try to match the teeth count, or else you'll have to have the speedo recalibrated. Last edited by Prong; 11-27-2008 at 08:05 AM. |
11-27-2008, 01:19 PM | #4 |
Registered User
Join Date: Jul 2008
Location: Ault, Colorado
Posts: 862
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Re: NP205 speedo gear replacement
Yo! Prong!
How do? And thanks! Happy Thanksgiving! Mine does not have the right-angled part, but I believe that the coned piece that's pictured may be similar to what I do have. Mine has a hex collar for a wrench and must unscrew from the t/case. I still have the NP205 core from my donor flatbed, so I'll pull it today. It has a gear that was working, so I'll use it. I hope that's what the problem is,...haven't heard back from stephen@offroad design.com yet. But those guys are WAY busy, especially with the economic changes we're going through,...and the holiday sales season, I hope!! Thanks again. I'll post a pic of the parts in question once I recover from last night and get back to work on FRANKENTRUCK. Todd. |
11-27-2008, 02:53 PM | #5 |
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Join Date: Jun 2008
Location: Moore, OK
Posts: 41
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Re: NP205 speedo gear replacement
I found all of my tranny parts and speedoparts here. You will have to look closely since they have all makes.
Transmssion and speedo parts |
11-27-2008, 03:16 PM | #6 | |
Modern day Fred Sanford
Join Date: Oct 2005
Location: Greeneville,TN
Posts: 330
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Re: NP205 speedo gear replacement
Quote:
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11-27-2008, 03:24 PM | #7 |
Registered User
Join Date: Jun 2008
Location: Moore, OK
Posts: 41
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Re: NP205 speedo gear replacement
try here also
NP 205 stuff |
11-27-2008, 04:37 PM | #8 |
Registered User
Join Date: Jul 2008
Location: Ault, Colorado
Posts: 862
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Re: NP205 speedo gear replacement
Yo! Y'all!
Recovered nicely now, pulled the gear and retainer from the donor flatbed's NP205 and here it is: Identical to the one in my ORD twin-stick NP205, and appears to be the same for the old FRANKENTRUCK NP203 (but it has the right-angled reduction gear attached in addition to this). Thank you very much for the links and info, I hope this will also help someone in the future. You can also tell if you have a speedo gear in place by simply looking at the end of the retainer after removing the speedo cable. The end of the speedo gear fills the end of the retainer, otherwise there'd be an empty hole. Happy Thanksgiving dudes! Todd. P.S. Found my speedometer to be faulty,...swapping for the donor flatbed's. Fuel gauge too (as it's now suspect since it doesn't work either) Thanks again. Last edited by asphaltburner; 11-27-2008 at 04:39 PM. |
11-28-2008, 01:21 PM | #9 |
Registered User
Join Date: Jul 2008
Location: Ault, Colorado
Posts: 862
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Re: NP205 speedo gear replacement
Yo!
Replaced the faulty '78 speedometer with the donor flatbed's '73,...worked great but the "H" stamped gear (18 teeth) made the speedo indicate that I was going 70 when I couldn't have been going but 55-60, so pulled the "J" stamped gear (19 teeth) from the donor flatbed's NP205 and that helped alot. I'll have to do some road testing to see how close it is now. Still have a pegged fuel guage, so I'll start checking the wiring. New senders, and both guages indicate beyond full when the key is turned on (infinite resistance). Thanks again, Todd. |
11-28-2008, 07:39 PM | #10 |
Registered User
Join Date: May 2007
Location: CO
Posts: 475
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Re: NP205 speedo gear replacement
Your gauge problem is most likely a ground problem (lack of). Do your ground wires off the sender(s) have a good bite into clean steel on the frame?
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11-29-2008, 01:36 AM | #11 |
Registered User
Join Date: Jul 2008
Location: Ault, Colorado
Posts: 862
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Re: NP205 speedo gear replacement
Yo! Prong!
Naw,...perfect grounds on the new senders, this is a sensor lead wiring problem,...the gauge is sensing infinite resistance instead of the 40 - 90 ohms that the sender would provide it. I posted a FRANKENTRUCK update post,...check it out. Thanks,...I'll get it tracked down soon. You should PM me with where you're at in Colorado, I'd sure like to know! Todd. |
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