dodge350c

Where can ig et the gears for it

NE frmhnd

My odometer reads 9% slow. Wonder if these gears could be the problem.

ofcmarc

Nah.....
That's probably the ratio adapter on the side of your tranny.

NE frmhnd

The speedo is only 5% slow, odometer 9%. I timed a mile with the needle at 60, took 57 seconds. I went about 245 miles and the odometer showed 219, not even enough to get to Indiana from where I fueled in Ohio.

NotEnufGarage

That was one of the first fixes I did on my truck about 3 yrs ago. Very easy!

InjuredOften

I have a '92 cummins 5 spd. Haven't pulled it apart yet but had a question. Awhile back my speedo and odo/trip would occassionally stop working. A hard bump on the road got it going again.

However, for the last few hundred miles, the odo/trip has not worked at all, but the speedo is fine.

Based on this write-up, it sounds like if my speedo is working the gears are probably not broken. I am unsure though, as there were some references to the later years having electronic speedos (which would mean only the odo/trip works off gears and could therefore still be the problem).

Not sure if this helps but my cruise control is finicky. Most of the time it won't work. But occassionally it will for about 5 minutes. Then it'll stop and take the speedo out with it.

Thanks.

dzl_damon

check the speed sensor on the side of the transfer case. That sounds like the most likely culprit. Mine is zip tied on tight. The gear in the cluster is only for the odometer, not the SPEEDometer.

Additionally, there is the crank sensor after that. But the speed sensor on the transfer case is a classic issue that is easier to get to.

EDIT: read closer and saw your odo sometimes doesn't work when your speedo does. Might be both issues.

zack_76401

Did dodge change up the speedos? I have one out of a 93 and its not like the ones in the pics. The front is exactly the same but the electornics/gears on the back are diff. It doesnt ahve the plastic cover on the back either. Maybe it was upgraded at some point?

Erska

AAARGH! I bought new odometer gears and changed them and when I turn the inside part of the motor odometer turns but when I'm driving the truck and everything is on, NOTHING! WHY!? Is the motor broken if I can take the brownish inside part out of it? It doesn't feel like metal but it has to be because there's magnets around the outside part of the motor.... Please help.

How can I test the odometer motor that is it broken?

The truck is 1990 W250 6bt 5spd.

Thanks!

Erska

Heey! I got it working!

Fourth time is the thing I guess

I took the speedometer out of the cluster and wired it straight to the battery.

Red is 12v+, black is 12v minus and the green is VSS signal wire. I pulsed the green vss signal wire to the minus as fast as I could and _I could see the speedo needle jumping and monitored the odometer motor at the same time, it moved but didn't turn!

So After that experiment I took the odo gears all apart again and sanded the little gear shaft overall radius little smaller and greased them well. And guess what! It works now. The odometer motor is VERY weak! So the gears have to be allmost like loose when they are on.

I hope this helps someone, shame that nobody ever can help me.

The Sarge

Hey there stickiers,

I am going to do mine i guess. I just swapped out a guage with a working odometer. It worked before i swapped it into my truck. I put it in and it only worked for maybe 300 miles.

Could it still be the odometer or would you think its something else.

My speedometer works. Any suggestions?? It stinks not having an odometer ya know.

Thanks.

lassy

Got my new gears swapped in yesterday, reinstalled, got really excited when the trip meter started rolling...but then it stopped!
Going to remove everything again and shoot some compressed air in to see if I can dislodge any loose impediments...hopefully that will be the ticket.

12valvin

If I just want too replace the small gear can I do that instead of both?

lassy

Pulled out the odometer again last night, removed the new gears, blew out the inside of the housing, turned the odometer gears manually to ensure they were turning smoothly, reinstalled the new gears into the odometer housing (without the motor being attached to the other side), got all the gears sync'ed up, then slid the motor shaft into the backside of the replacement gears, tightened it all up, used a scribe to manually turn the gears after the motor was installed and everything turned nice and smooth. i reinstalled and whammy!! my odometer works!! thanks for the help fellas!!

peckens

i had a similar problem in my 94 dakota, i ended up diconnecting the barrel connectors, twisting them 360 degrees and reconnecting. the twisting force kept all the connections nice and tight. No problems for 6 years so far.