How the Speedometer Sending Assembly works
01-20-2010, 07:40 PM
#16
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I just did a complete driveline swap into my '93 2500. How can I get my NP203 to drive my spedometer? I have a 2wd auto trans left over from the swap. Can I remove the speedo guts and move them into the 203?
01-21-2010, 11:56 AM
#17
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Shawn, if your asking that to me, well, sorry , thats a bit beyond my knowledge base!
Ya might check with some of the guys here who rebuild tranny's, they should be able to help ya.
Ya might check with some of the guys here who rebuild tranny's, they should be able to help ya.
01-21-2010, 01:30 PM
#18
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If the drive adapter/vss will thread on to the 203 speedo drive it should work. You may have to find a different ratio box to correct the speedo if it is off though.
08-24-2010, 09:31 PM
#19
I have almost completed a swap of a '93 cummins into an '85 crew cab. The donor cummins truck was two wheel drive with a three prong speed sensor. I had a 4x4 overdrive put together and am going to run the NP205 t-case out of the crew. The crew was originally cable driven, so it has the ratio reducer shown in Bookshelf's photo. How can I get from the reducer to a three prong sensor?
08-26-2010, 11:39 AM
#21
Sorry, I forgot to mention that the '93 sensor has a built in ratio reducer and will not fit the t-case. Therefore, I can not just screw the '93 onto the reducer and can not replace what is in the t-case with what is on the '93. The '92 and previous will screw on but are only two prong.
08-26-2010, 03:38 PM
#22
Registered User
grease fitting?
Wanna and other with 2WD trucks have reported having a grease fitting ("zerk" or "alemite") on the gear ratio reducer. The gear ratio reducer on my 4WD doesn't seem to have one. Can anyone comment on which units came with a grease fitting and which did not?
TIA
TIA
07-21-2014, 07:26 PM
#23
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I hate to open this thread up again but I'm stumped. I have a 91 d350 auto and my speedo stopped working and it stopped going into OD. I figured it was the VSS and bought one from oreilly. I got home and noticed that I don't have a gear reducer on mine so I just replaced the old one with the newer one.
The new one came with a new wiring pigtail but there were no other plugs that I could see on my stock wiring to plug the other end of the pigtail into so I just used my old wiring and plug. Took the truck out and still the speedo doesn't work and it won't go into OD.
Could I have gotten another bad VSS? Is there anything else I can do to fix this? I'm getting pretty aggravate with this truck lol
The new one came with a new wiring pigtail but there were no other plugs that I could see on my stock wiring to plug the other end of the pigtail into so I just used my old wiring and plug. Took the truck out and still the speedo doesn't work and it won't go into OD.
Could I have gotten another bad VSS? Is there anything else I can do to fix this? I'm getting pretty aggravate with this truck lol
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