View Full Version : Too Many Neutral Drops?


LCAC_Man
Dec 31st, 07, 03:58 PM
Figured I'd take on something easy today, new ujoints for my driveshaft, noticed they were pretty sloppy when I pulled the trans. Spent about an hour pressing the old joints off and degreasing the shaft, when I laid it back down I noticed something fishy....maybe it's just me but I think those yokes are supposed to be aligned with each other.....

zdld17
Dec 31st, 07, 04:45 PM
Unless you saw this before and it was clocked at maybe 90°, be aware that many early camaro drive shafts were made this way. I think that other members have run across this. It was a phasing issue to correct harmonics I believe.

SixtyAte
Dec 31st, 07, 05:20 PM
Its the way they were made. My original shaft is te same way and got me to research on why it was done. As the previous post stated, it was a way to correct harmonics.

Kev

Eleanor's Nemesis
Dec 31st, 07, 05:25 PM
Aren't driveshafts still made this way? I have only worked on a handful but seems like they were all this way so the driveshaft doesn't get in a bind as both ends move?

LCAC_Man
Dec 31st, 07, 05:32 PM
Can't say that I'd ever heard this before. I've been doing mostly offroad stuff the past few years and they are all clocked straight. Thanks for straightening me out.

67sprtcp
Dec 31st, 07, 06:11 PM
I had a clutch put in my 67 and noticed my driveshaft is like that too. I thought maybe someone had jury rigged it at some point in. Maybe they were made that way.

zdld17
Dec 31st, 07, 06:15 PM
Probably should have said that my orginal is this way but when I had a new one built for the TKO, it was clocked at 90°.

77wolf10.85
Dec 31st, 07, 06:19 PM
Aren't driveshafts still made this way? I have only worked on a handful but seems like they were all this way so the driveshaft doesn't get in a bind as both ends move?

You are partly correct but not all are built this way. The old man that taught me called it "clocking". On a truck with a carrier bearing and 2 shafts it is very important to not synch them. But I've seen lots of driveshafts that their yokes were straight in line and lots that are 90° apart in trucks.

I imagine pinion angle to tranny angle plays a large part. It's going to become more important as the amount the trunnions rotate increases, I figger.

I know we clocked one wrong once, and it was a long time before the old man let up on us.:)

It whomped pretty good at highway speed:D