NP241-C, non VSS. Can I convert to VSS or no. No luck!!

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AuroraGirl

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Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
I did install the Walter Engineering VSS on a NP208. I found Walter Engineering VSS problematic. First the signal was very weak and would only start working after I was going 20mph+. I needed to get the speed sensor closer to the reluctor wheel, so I sanded done the speed sensor holder to get it to sit closer to the reluctor wheel. It works better, now starts picking up vehicle speed around 4-5 mph but I would say's it's not perfect. Also where the VSS fits into the case is leaking oil and I need to figure out how to stop the leak. Possibly use some RTV where the o-ring seals in the case. If you go with the Walter set-up, please let us know how it goes because there is not much information out there.
do not RTV an O ring
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,809
Reaction score
7,046
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
Does the PCM youre using have a provision to adjust the VSS signal or at least disregard it while in 4wd? fords did this, the transmission had the output or the axle, and the computer did math when in 4lo so it didnt try to shift at like 4mph
 

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