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First time I open her up on the HWY and this happens! I was afraid this would from a dead stop but not already moving. Any ideas on a good driveline replacement with some meat so I don’t end up along side the road again? Would like to upgrade all the drive lines, yokes and u-joints before this happens again! Haven’t even started to have fun with it yet.
Ouch!!!!! That does suck. I suspect your engine must be making ever so slightly more torque than the original stock engine... : )
I would visit your local driveline specialty shop. They can easily install stronger drive shaft yokes and maybe even go up a size on u-joints although then you might need to go with a conversion U-joint for the very rear.
Could have been, I didn’t notice it when I was cleaning and painting them but I wasn’t looking that close either. Still a good reason to update the whole driveline deal. I am afraid I will continue to have problems if I don’t. Dyno will tell but builder is guessing I will see 475-500hp and over 550 torque. Will be hitting the local Dyno shop now that the thing is running good. Took a while but the Edelbrock Pro Flo 4 is dialed in (3 map tries) and running really good now. Was a little disappointed at first but now that it is dialed in pretty sweet. Still have a couple motor issues to figure out but runs strong.
That does suck...for sure. Better a d/s than a yoke on the pinion....there has to be a weak link in there somewhere, and u joints are usually it. I would of taken the rest of the d/s out (slip yoke on other end at xfer case), locked in the hubs and drove home in 4 H and NOT put my foot in it. That u joint looks awful suspicious and I see no grease in there anywhere. But yea looks like the d/s ear failed when you punched the gas on that hot rod.
X2 on u joint upgrade time.
Yes outa state, but check out Blumenthal’s in Oklahoma City. You may ask some of the auto parts shops around you (Napa, Auto Zone, O'Reilly's) if they a recommendation on a local shop or have a number for a driveline specialist place. What Blumenthal’s is, somebody that rebuilds clutches and drive shafts and so on.
Even if you call those guys I think you’ll end up talking to Armando, extremely helpful guy in the yoke/u-joint department, you will get good info at least.
301 South Western Avenue Oklahoma City, OK 73109 (405) 232-9557 Blumenthal - Blumenthal Companies Home
http://www.blumenthalmfg.com/
It does at that! I think it likely that the that yoke was already cracked on the driveshaft itself. The U-joint did not fail, the yoke did.
X2 the DS was cracked to start with.
The other thing to check out as it looks like you have a lift, that the U joints are not bottoming out on flexing
as that could also be how it cracked.
Dave ----
Just curious, did it let loose when you hammered on it and it down shifted or when the trans up shifted? I see an auto in past threads. Just locate a local drive line shop with a solid reputation and talk to them about upgraded flanges and new HD driveshafts. Remember you can drive the truck there in front wheel drive.
Well, I don’t know really. I put the hammer down and it lifts the front end up and puts me back in the seat. I am smiles ear to ear and then a horrible vibration. I hit the brakes and pull over. Get out everything looks good, put it back in drive and BANG.
