Bent or improperly indexed or unbalanced driveshaft.
Brake drum dragging
As mentioned pinion angle
Brake drum dragging
As mentioned pinion angle
U can’t just balance the crankshaft and the balancer and flex plate. The pistons and rods need it also. U may of just made it worse. Did u have the motor out for balancing? Running in neutral or park car not moving then like stated it’s in the motor or tranny/converter/flex plate. Why no pics of the modified flex plate, balancer. Is the correct crankshaft in it. Have u verified it as such. If ur confident the motor is good that leaves the flex plate, converter and or tranny. But that may only be 1 of the problems as when driving that can and does create new vibes. I can’t for the life of me figure why u put the old converter back in when u knew u had these vibes. Post some dam pics if u want some fn help. Kim
Driveshaft had to be shortend for the 8 3/4 and it has been new balanced.Bent or improperly indexed or unbalanced driveshaft.
Brake drum dragging
As mentioned pinion angle
I am going to check the angles again asap.
Found this video and this is the vibration I have.
(1:05)
I am going to check the angles again asap.
Found this video and this is the vibration I have.
(1:05)
If those were taken from the trans tail shaft and pinion yoke, those angles look right on. I would not change a thing.My angles are:
1.pic transmission
2.pic rearend
3.pic driveshaft
View attachment 1715724710
View attachment 1715724711
View attachment 1715724712
Check to make sure that the drive shaft tube is not out of round.Maybe I‘ll try to balance it myself.
I have nothing to lose I think
Check to make sure that the drive shaft tube is not out of round.
The shaft can be in balance but if the tube is out of round it will wobble and vibrate.
I did a swap from a 904 to 727 years ago and had a terrible vibration as well both in neutral and driving. Found the transmission I had had a casting on the extension housing that made it touch the trans tunnel after installation. Once I resolved that, the vibration was gone.Hey folks!
I have really strong vibrations at 2800 rpm and up.
In part throttle the steeringwheel is even shaking.
It is in neutral the same as driving.
Driving over 60 is real bad.
But sometimes even under 60 partthrottle is very bad and all starts shaking.
I swaped the rearend and I did the whole engine but still there.
I changed the engine mounts and installed a TCI Rattler but still bad.
I tried without fan, powersteering pump, alternator aaaand it's still bad.
I don't think it't the engine because I totally changed it (heads, cam, lifter, piston,...) and it's still like before.
Changing the ignition curves (MSD E-Curve) was also no big help.
The vibration comes through the floor I guess because sometimes I feel like I got massage seats in my Duster...
I had to adjust the flexplate a litlle because it didn't fit but I think it's no big deal..
Maybe It's the converter but I don't know what could be wrong with that.
It's ballanced and for internal ballanced engines like my 318.
I don't know what to do anymore..
Thanks anyway.