I was told by an old ford guy my vibration could be coming from my Trans as the counter balance was missing. I've never heard of that but he showed me one. It's a weight that bolts to the tail shaft and sticks about a foot back from the trans. looks to weigh about 10 pounds. Is anyone familier with this? Do I need one?
that's not a counter balance, all that really amounts to is a vibration dampener. Doesn't do much....I've taken them off and never noticed any difference without it.
Thanks The guy wants to sell me one for $25 maybe I'll try to rent it for $5 and pay $20 if it does the trick
I am keenly interested. I have a vibration at 25-40 mph that goes away at higher speeds. I don't know where it is coming from. I was starting to think it was time for a new dampener (may be anyways, after 35 years...) Except it doesn't vibrate unless I am moving and in gear.
vibration @ speed I had a problem with a 79 F150 that resulted in a vibration @ about 50 mph, turned out to be the splines on the shaft yoke were worn. I ran it in front wheel drive mode (no shaft at all, hubs locked, 4H) for two months while I saved up for a new shaft (ah, the salad days...too bad they aren't over!)
U joints, drive shaft balance/bent/ dirt, drive shaft indexing at the pinion input, dry splines, worn output housing bushing, pinion loss of preload all in single or some combination can cause the same result. Many drive shafts has a damper as part of the front yoke.
