New Driveshaft vs Refurbish

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Dirt J

Dirt J

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Joined
Jun 15, 2021
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Location
Alabama
Have some roar from the rear at highway speeds when under load in certain conditions. Thinking its is the rear driveshaft (propeller shaft).

So now looking at cost-benefit of entire new shaft (371106A610) vs new u-joints and seal (dust cover). Would come out cheaper with the refurb (during upcoming sale looks like $135-ish for two joints and seal vs $367 for new shaft).

Curious as to how many have actually experienced wear/slop in their splines and how to diagnose? Twist by hand with one-end uninstalled?

Also, anyone replaced that seal... FSM says a press and SST is needed. Wondering if mallet and PVC will work. If this is a headache, that time plus pressing in/out the joints has me leaning toward new shaft. Wouldn't mind having a trail spare too.

Opinions welcome.
 
Trunk Monkey said:
Easy way to tell, pull the driveshaft, lock the center, go for a drive, see if your noise is still there.
Click to expand...
And lock the front hubs 😎:p

Does replacing the u-joints necessitate a re-balance, assuming yolks are kept correctly phased/clocked? I would not think so, but again looking for experience.
 
following

i was doing research on this last night because I'll be putting mine back on soon, and I still don't know what to think. I didn't mark the slip joints or the yolks when I pulled both of my driveshafts so I have no idea how to mount them back on 😔

It seems the slip joints have an arrow on some models to line up properly but I don't see any markings like that on mine. Gonna end up guessing and then having to remove it again three times until it's right
 
One data point for you: I had a local DS shop put new rear u joints on my 250K DS because it was squeaking. The squeak was gone but the vibrations (above 63 MPH) I thought it would cure remained. I bit the bullet and put new front and rear toyota DS in and it was transformative for me. Smooth like a new car all through the rev and mph range and the tach sweeps rpm with no vibes. Happy camper here with two new DS's.

Note: I bought the truck with 60K miles in 2001 and serviced (with redline CV2) from there every 5K miles. In my opinion, I consider DS a wear item due to spline wear
 
@ed94r thanks!

Forgot to mention I'm at 345k on the odometer.
 
My 2000 is at a little over 240k and as soon as I can get to it I'll bolt in a new drive shaft. The splines had slop in them and the ujoint did too.
 
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