One Piece Driveshaft Installed! - Dodge Cummins Diesel Forum
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post #1 of 120 (permalink) Old 04-24-2009, 08:36 PM Thread Starter
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One Piece Driveshaft Installed with PICS!

I know this has been discussed on this forum along with TDR and Dieseltruckresourse.com but just wanted to give a little update as to my journy with the bad vibrations these trucks sometimes have.

So after driving myself nuts trying to diagnose the droning (woo woo woo) vibration coming from the rear of the truck at high speeds; I went and dropped the cash for a Mopar one piece aluminum driveshaft to replace the two piece.


Initial Impressions:

-NO launch shudder....very smooth acceleration.

-WAY lighter than the stock steel shaft, made installation much easier with one person (me).

-Feels tighter when going over bumps...before it felt like the driveshaft or something would hit the frame or bottom out if a large enough bump was hit. Now it feels like the engine/tranny is more stable without all the weight of the two piece jostling it around.

-No high speed vibrations yet. I have had it up to 70 mph or so on the flats. The true test will come when I drive over the continental divide this weekend because for some reason the droning is way worse when going up hills and really throttling into the truck.

I'm keeping my fingers crossed for when I drive the mountains on Sunday!!


CURRENT: 2013 3500 Laramie QCLB SRW Aisin 3.42 4" BDS Fox 2.0 37x13.50r20 Toyo BD TSB SOLD: 2006 QCLB 3500 6" 37's Fiance:2015 Jeep EcoDiesel

Last edited by DieselMachine; 04-26-2009 at 11:41 AM. Reason: Adding to the title
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post #2 of 120 (permalink) Old 04-24-2009, 09:03 PM
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part number?
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post #3 of 120 (permalink) Old 04-24-2009, 09:06 PM Thread Starter
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4 Speed Auto 52123220AB
6 Speed Manual 52123162AA

CURRENT: 2013 3500 Laramie QCLB SRW Aisin 3.42 4" BDS Fox 2.0 37x13.50r20 Toyo BD TSB SOLD: 2006 QCLB 3500 6" 37's Fiance:2015 Jeep EcoDiesel
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post #4 of 120 (permalink) Old 04-24-2009, 09:15 PM
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What were the prices?

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post #5 of 120 (permalink) Old 04-24-2009, 10:13 PM
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post #6 of 120 (permalink) Old 04-24-2009, 10:40 PM
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I want to do this when my carrier barring finally goes, do you think there will be any problem with shoving the seal into the transfer case by really squatting the rearend?

The road goes on forever and the party never ends
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post #7 of 120 (permalink) Old 04-24-2009, 10:53 PM Thread Starter
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Price for mine was listed at $607!! I don't know about the manual's price. I was able to get them to knock it down to $549 for being a return customer but its still ridiculous when guys were getting them about a year ago for around $350. I tried to get a few local shops to build one but they said because it was an AAM driveshaft that they couldn't get the knuckles in aluminum like they could have if it were a Spicer.

So, I reluctantly paid it, but am happy so far!

CURRENT: 2013 3500 Laramie QCLB SRW Aisin 3.42 4" BDS Fox 2.0 37x13.50r20 Toyo BD TSB SOLD: 2006 QCLB 3500 6" 37's Fiance:2015 Jeep EcoDiesel
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post #8 of 120 (permalink) Old 04-24-2009, 10:55 PM
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I was wondering the same thing TW, but the short beds have used a one piece for a long time, so I guess there is enough room for it to slide already there.

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post #9 of 120 (permalink) Old 04-24-2009, 10:58 PM
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post #10 of 120 (permalink) Old 04-24-2009, 10:59 PM Thread Starter
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Quote:
Originally Posted by twhetten View Post
I want to do this when my carrier barring finally goes, do you think there will be any problem with shoving the seal into the transfer case by really squatting the rearend?
I'm not sure but with the lift on my truck, it looked like there could be a little more engagement on the slip yoke. I was worried that there would no be enough overlap with the splines and allow it to vibrate. A local 4wd shop told me a guy with an 08 with a single driveshaft almost had it pull totally out of the t-case, but that was with an 8" lift so he definitely needed it to be lengthened.

I would guess that on a stock truck that they would have to allow for enough forward movement of the shaft until the springs hit the bump stops?

CURRENT: 2013 3500 Laramie QCLB SRW Aisin 3.42 4" BDS Fox 2.0 37x13.50r20 Toyo BD TSB SOLD: 2006 QCLB 3500 6" 37's Fiance:2015 Jeep EcoDiesel
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post #11 of 120 (permalink) Old 04-25-2009, 03:09 PM Thread Starter
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Update:

Test drove the truck today going up some pretty steep grades on I-70 and am pleased to report that there was no driveline vibration!! Got the truck up to 95 mph on the flats and it is smooth as silk.

Makes the truck so much more enjoyable to drive!

CURRENT: 2013 3500 Laramie QCLB SRW Aisin 3.42 4" BDS Fox 2.0 37x13.50r20 Toyo BD TSB SOLD: 2006 QCLB 3500 6" 37's Fiance:2015 Jeep EcoDiesel
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post #12 of 120 (permalink) Old 04-25-2009, 07:30 PM
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Is this for an 8' long bed quadcab?

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