np203 speedometer parts missing
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From: Newtown Square
np203 speedometer parts missing
I have a mid 70's f-250 reg cab 4x4 hi-boy, year unknown due to a cab swap by a previous owner. It has a four speed and a divorce mounted NP-203 transfer case. When I bought it the speedometer wasn't hooked up. There is a threaded hole on the transfer case output housing where the speedo would hook up, from what I have been able to find on the net there's supposed to be a fitting that goes in this hole which the speedometer threads onto which is missing. Is there also supposed to be a short shaft that runs perpendicular to the transfer case output shaft from the end of the speedo cable with the 16-21 tooth gear attached to the end? Am I way off base here? Thanks in advance for any help.
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From: Simi Valley, CA
There is no such thing as a 16-21 tooth gear. 16-21 refers to the fact that 16 thru 21 tooth speedo driven gears are available.
To figure out which is correct, the rear axle ratio, type of trans and what size the tires are must be known.
I see no adapter in the T/C for the speedo cable to thread into. What I do see is the cable itself has threads.
The gear is inserted into the cable (a rubber o-ring fits between the gear and the cable), then the cable threads into the T/C.
To figure out which is correct, the rear axle ratio, type of trans and what size the tires are must be known.
I see no adapter in the T/C for the speedo cable to thread into. What I do see is the cable itself has threads.
The gear is inserted into the cable (a rubber o-ring fits between the gear and the cable), then the cable threads into the T/C.
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Joined: Oct 2003
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From: Newtown Square
Correction, after crawling under the truck I found that I have a dana 24 transfer case. I guess these were installed in 59-72 F-250`s. The transfer case has threads where the speedometer cable is to be attached.
thanks
Ross
thanks
Ross
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