Topic: odometer

[jrock]

I just bought an SR5 dash and the milage is 100,000 over mine. Is there a way to change it to match mine without breaking it? The SR5 is 298,000 and mine is 199,600. Yah, almost there.

[bigarms23]

unscrew the plastic and had roll the od back

[8D3TOY]

I did mine, just carefully "loosen" the odometer and seperate the #'s a bit,don't pull it all the way apart, there are little teeth that are supposed to prevent rollback between the #'s on the drum.  If you loosen it with out completely disassembeling it you can gently pop the #'s around to where you need to be.  I got close enough on mine.   http://www.barneymc.com/trckinfo.htm#Upgrades  there is another one that shows how to do it but I can't seem to find it anymore.

[Ewong]

I just did this mod on mine

My truck has 352,000 on the odo and the SR5 cluster had only 127,000

I didnt take pics becuase - well it could get misused.

get a nice clean work space.

spread out a white towel so if little screws drop they dont roll away.
Don't use the towels that your MIL gave your wife  - use the one that you "liberated" from the motel that the dog sleeps on.

Remove the front clear cover
-- there are tabs holding the cover on.
-- use some screw drivers and un latch the tabs

Remove Speedo from the rest of the cluster
-- going from memory here
-- there are 1-2 screws holding the cluster on
-- there are 1-2 screws that are use to connect elec signals to the cluster

Flip the cluster over so that the face side is down and the speedo should drop out of the cluster.

Remove the speedo needle.

Take a NOTE of where the speedo needle is at rest (I think its on the pin)
-- use TWO table knives (not the steak kind - the butter kind)
-- place one "blade" under each side of the speedo needle
-- use both blades to evenly "wedge" the speedo needle off

now remove the two small phillips screw that hold the face to the speedo

The ODO is exposed.

If the face of the ODO is towards you - on the LEFT side
-- there is an odo cluster on an axle
-- this axle is retained in a groove
-- to keep the axle int he bottom of the groove a small tab of the groove is BENT up
-- this bend retains the ODO cluster

CAREFULLY pry back the tab so that the axle is clear to be removed
DONT bend it any more than you have to!!!
Work slowly - if you bust the tab of yer hosed

once the axle is loose - the digits can be separated and rotated

WARNING
The tabs can line up in more ways than one - its possible to jam things back so that some digits are not "lined up" evenly
Getting everything to line up is a PITA and takes PATIENCE.

I had to fiddle with this at least a dozen times so I had all the numbers lined up where I wanted them to be

Id shoot for a a slightly lower mileage and then spin it up by hand (I wanted the numbers exact to the mile)

When its all back toghter and the numbers are lined up...
Place the face plate back on to VERIFY that the numbers are straight

THEN AND ONLY THEN
bend the tab back to retain the axle

Reverse the steps to get it back together.

Push the speedo needle on GENTLY

[TheTransporter]

HINT- don't let anybody see you do this

[DTB]

HINT- don't let anybody see you do this

haha yea i was wondering if this was legal

[jrock [OP]]

haha don't tell.
I'm not trying to cheat anyone, I just want to keep the numbers the same.
I got as far as to get he speedo assembly out but I couldn't figure out how to get the needle off. I'll try your way.

Where can I buy the light bulbs?

[jrock [OP]]

another question, do you think I can just swap the odometer number assembly?

[8D3TOY]

another question, do you think I can just swap the odometer number assembly?

  Yes, I would say so.  Is there any legal issue with doing this?  I figured I am not a dealer and the vehicle is so old it wouldnt matter.

[jrock [OP]]

I think I'll try that first so I don't have to mess with the numbers. I'll post if it works.

[Tallchevy]

It is against the law to roll the odometer back. Lets say you were going to sell the truck. The only way DMV might question it is if it was sold before with more miles than what being reported now. Since your not selling the truck then who really cares. I say leave it cause if your not careful you might mess up the mechanicals & then the odometer won't work. I had this happen to me before. Needless to say I wasn't happy about it  Good luck 
 

[RN37DD]

when i bought my 79 the odometer didn't work, so i just marked the box [ not the true miles]  due to broken odometer or whatever it said. I think the big thing is just saying what's up with your rig when you sell. even if the odometer was working it would have turned over a few times by now. funny the speedo and trip meter still works.

[8D3TOY]

In CA anything over 15 years old (I think) is considered TMU or true miles unknown, kind of like when the odo rolls over and you have a 20 year old car with 3k on it,it really isnt important to the DMV to track miles on old junk.

[RN37DD]

thats cool... that one of the first things the ca dmv did that makes sense... although i saw a report last year that stated that the new cars now are about as reliable as a 15 year old Toyota.. i sure past a lot of expensive broke down new rigs with my old miles unknown junk..  alway good for a smile...

[jrock [OP]]

I'm having trouble. Nothing works right exept for the speedo.

[jrock [OP]]

this was at idle. engine cold. gas tank half full.

[jrock [OP]]

does anyone have an idea?

[Tallchevy]

Did any of this work before you took it apart?

[BigMike]

The wires changed I think twice during the 2nd gen years thus making this NOT a bolt in affair. I think 1984-85, 86-88, 89. I put a 1989 SR5 cluster into blane525's 1985 non-SR5 truck and I had to reposition about 10 wires. The wires are all there, but they need to be moved into different locations on the plug.

Do you have access to wiring diagrams for both your truck and the year truck you got that SR5 cluster from? Do you know what year that SR5 cluster is?

BigMike

[jrock [OP]]

it was from an 85 runer and put into an 85 pu. and i'm told it worked.