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Author Topic: 84 Dodge One Ton Cummins crewcab conversion....  (Read 107191 times)

Brian

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #285 on: December 19, 2012, 09:26:02 PM »

I have yet to get the driveshafts out and test them for "trueness" on the shop floor.  As for weights...pretty sure there were none missing....but will doble check that too.  I'm 100% sure it has nothing to do with the rims and tires...since the truck was running nice and smooth just before I changed the carrier bearing, and U-joints.


 
From the reading I've been doing I'm almost certain that the vibration is from a worn slip yoke, or tailshaft bushing.  I will fill up the slip yoke on the midship shaft with grease and see if the vibration diminishes.  I will also order up a new tailshaft bushing and seal, and get that taken care of.
 
 
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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Steve

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #286 on: December 20, 2012, 07:48:44 AM »

I can't remember, but I thought I said that already.  LOL
 
The shaft has the weights on it, but was it balanced after the Mod? 
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Brian

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #287 on: December 25, 2012, 12:07:14 PM »


Quote from: POLARACO
I can't remember, but I thought I said that already.  LOL
 

Yes before I started driving the truck I had the front shaft shortened slightly...since the yoke was basically snug against the tail shaft...and then I had all new U-joints installed.  I then had the two piece drive shaft balanced together.  So balance should be good....that's why I'm thinking its worn out parts.



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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Brian

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #288 on: December 26, 2012, 02:25:57 PM »

Then laster last evening we went for our annual family Christmas light drive around town, and there was definitely a reduction in the vibrations from the drive shaft.  So I think this is one of my problems.  SO guess I need to order up a new midship spline, and yoke.
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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Brian

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #289 on: January 06, 2013, 07:34:32 AM »

The tranny and carrier bearing mounts are just pieces of channel across the frame.
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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Brian

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #290 on: January 06, 2013, 07:35:06 AM »

Last night I decided to cut and paste my two systems. Use the new'er control stock, and the old wiring. Carefully made sure to match all the wires to the proper connections, and solderd them all together. Will try installing it this morning...hope for the best.
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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #291 on: January 06, 2013, 07:48:09 AM »

Sounds like you are keeping busy. Sorry to hear about the wiper problem. I had my nylon bushing break on my Dakota about a month ago, over $8 for a dealer available new one, had to remove the hood valance and pull the wiper arms to get the new one installed, about an hour job, so I can only imagine the switch problem and time involved. Watch it turn out to be wiring elsewhere after all this work.
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Brian

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #292 on: January 06, 2013, 07:02:55 PM »

Well here is a pic of the joining of the two harnesses....




I
 installed it, as I said earlier, and nothing worked.  But you could
hear the intermittent relay cycling, and power clicking into the
system.  SO I pulled the wiring out again and double checked my
connections....yup everything was exactly how it should be.  So after
that I re-install the wiring and decided to check the plug at the wiper
motor.  I was getting power to the plug, from different location
depending on if it was intermittent wipe or not.  And the washer fluid
pump was working...so I figured it had to be the wiper motor.

So
even though I had pulled the motor last night and it cycled fine, I
decided to use a spare motor I had.  Although this one had a different
wiring connector so i couldn't plug it in...but I had snagged  6" of
wiring with it so I was able to make a jump to the wiring in the truck. 
 And if your doing this don't forget the external ground.   So i hook
everything up, power it up and the motor works perfectly.  So this was
the problem. 

 So onto Rockauto to find an interchange
list...then out to the wreckers...grabbed an almost new one from a 91
Plymouth Voyager.  Came home and hooked it up first off with the jump
wires...and everything worked!!  SO out came the old motor...then swap
over the new motor onto the base plate from the truck, then re-install. 
 I now have wiper again!!


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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Steve

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #293 on: January 06, 2013, 07:31:49 PM »

Beats driving in the rain with a squeegy and rain-x sucks
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84 Dodge One Ton Cummins crewcab conversion....
« Reply #294 on: January 06, 2013, 08:19:47 PM »

YEAY!!!!!

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Brian

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #295 on: February 04, 2013, 08:57:54 PM »

Alright another step taken.  The shake from the drive line was getting
BAD!!  I pretty much figured my tailshaft bushing was toast...so I
ordered up all the parts and finally got to it over the weekend. 

Fairly
 straight forward...remove a bolt from either side of the tranny side
cover...where the PTO would go, and let drain.  Then remove drive
shaft(s) and tranny mount and cross member, and then find a 10mm 12Point
 socket to remove 8 bolts...use heat on each one to loosen blue
loctite.  Remove speedo gear assembly and it's ready to come part.



And rear section off....



I
 had ordered a new 5th gear and nut from Quad4x4, since I was unsure of
what I might find.  I found everything in good shape, with the original
chrysler updated nut.  Everything appeared to be in fine shape so I left
 it alone for now.


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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Brian

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #296 on: February 04, 2013, 09:08:00 PM »

Now that the rear section of the tranny was off I could use a hack saw to cut through the old tailshaft bushing.



Once
 cut it just slips right out.  This thing was TOAST!!  You can see how
hot it had been getting, and there was very little material left on the
inside of the bushing.





I didn't snap any pics of the reassembly process....cold and raining and wasn't too thrilled about laying out in the weather. :(


 I put the new bushing in the freezer for a day...then brought the
housing in the house to get warm.  I then used a chunk of ABS pipe to
help drive the new bushing into the housing.  This was a chore
though...I should have warmed the housing up in the oven at 300 deg or
so...might have slipped in a little easier.  I ended up rolling the edge
 a bit, so I had to file and sand the outer section of the new bushing
to clean things up....not too bad though.


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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Brian

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #297 on: February 04, 2013, 09:24:20 PM »

I decided since it was all apart that I would play with my speedo.  My crew
 is a 84, but the donor was a 89.  I have a 96 NV4500 and a cable driven
 speedo.



Ever since I got the truck the speedo has spun too fast.  It has been
about 8-10 KM/H off.  I removed the speedo gear housing from the tranny,
 and as Mark Nixon has mentioned, it's your standard mopar speedo housing and gear
used from mid 60's on up into the 90's.





So I find a 27 tooth speedo gear inside.  I figure since I'm running
3.54's I should have a 35 tooth unit....nope wrong.  With the 35 tooth
gear I was now running 20 KM/h too slow.  So out it came again and I
swapped in a 32 tooth unit.  I'm now darn close...think my speedo is
about 1-2 KM/H slow....might have to get a 31 tooth speedo gear and try
that.  I have a good selection of speedo gears from parting out mopars
over the years...but I don't have a 31 tooth gear.  But these are
readily available.



I'm running stock 235/85/16 tires and rims...so this is pretty close to a stock set-up.



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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Brian

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #298 on: February 04, 2013, 09:28:11 PM »

And a couple pics of everything done and back in place....





The
 vibration is significantly lessened now...but something is still out of
 alignment, or balance. I'm going to replace my carrier bearing again
and see if maybe I got a bad unit right out of the box?  I bought a unit
 off E-bay so I can't return it for any warranty.


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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

dana44

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84 Dodge One Ton Cummins crewcab conversion....
« Reply #299 on: February 05, 2013, 07:57:52 AM »

Sounds like good progress. At least a majority of the vibration is gone, now it is some other little small detail. I guess carrier bearing first, driveline second.
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