just Matt

Yes, I've read that they are a real bear to get back together.

Thanks Bob. Appreciate the confirmation on the phasing. I'll put it back together with the new center support and bearing and see how it does. Yes, pinion angle could also be the culprit. I imagine that tool set is a pretty rare item. Yes, I found the service manual at oldcarmanualproject website. 👍

1961 Invicta, "stock" 401 w/ Dynaflow. Can someone confirm whether my driveshaft is correctly phased? I've read that some of these Buick shafts were intentionally engineered "out of phase" by like 37-1/2°? Is that true for a '61? Mine looks to be "in-phase"? I have a vibration at 60+ mph. The center support rubber is pretty old and dry rotted. I'll replace that with a new support and bearing. U-joints look pretty fresh. I'm wondering if some driveline shop "fixed" the out of phase condition at some point, not knowing that these Buicks are SUPPOSED to be out of phase? Thanks ✌

Ok. Sorry to hear about your friend Paul. Thanks for the reply anyway.

Sorry to bring this thread back from the dead... Ed, do you happen to have the name of that machine shop in Detroit area? My friend needs some work done on a 401, and he is looking for recommendations. Thanks!

Ah, okay. That makes sense. Thanks!

Wow! Looks like you caught that tire just in time. Someone was looking out for ya. Curious...what is the issue with the shockwaves? I know very little about air ride systems, but I've been pondering it lately. What about the shockwaves makes the standard bag more desireable? Reliability? Ride quality? Cost? Thanks.

Wow! Classy! I'll have to keep an eye out for a copy.

I'll be around. During the week for sure. If I go Saturday, I will likely leave car at home. May skip out entirely and go to Relix Riot at Gilmore Museum. Plan to hit Woodward this weekend. Probably Saturday night.

So that's what that button is for! I just assumed it was the remnants of some aftermarket accessory added by the previous owner. It looks so out of place, and like no other GM/OEM part I've ever seen. Thanks for posting this question. Mystery solved!

Oh crap. I'm an idiot. You're right, it's the old GM Building, now called Cadillac Place. I knew it was the old GM headquarters, but obviously I need to study up on the names of the Detroit landmarks....

old GM Headquarters Building in Detroit

http://forums.aaca.org/f177/before-i-drill-rear-seat-belt-282482.html

I look forward to meeting you, and seeing your car out and about this year. I installed the belts myself. In fact, I just finished putting the seat back in this evening.