Another Handling ???
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 2,039
Likes: 105
From: State of Confusion!!!
2018 C2 of Year Winner
Another Handling ???
I had asked a ?? about the handling on my '71 B/B a while back. On the advice of fourm members, I checked and re-checked the front end and steering but found nothing.
Over the winter, I had GTR1999 build me a rear diff. (excellent job Gary!!!) I have recently installed and broke in the new diff and my steering feedback is gone!!!
When I removed the old diff form the car, I could not turn the yokes in opposite directions by hand. I never put any tools on them for leverage, but I tried, HARD, to turn them by hand and they won't budge. The car is new to me, so I'm not sure who has been inside it. Bubba could've "set it up", but I don't know what has been done in the past.
Could the old rear diff be so tight that it wasn't slipping in sweeping corners?? It used to feel like a 4x4 in 4 wheel drive on pavement. The front end used to hop, but now everything feels o.k. The old diff never hammered in tight corners, but that is the only thing I have done over the winter.
Whatever the case may be, Gary and a new set of 3.73's REALLY woke my 454 up!!!!
Over the winter, I had GTR1999 build me a rear diff. (excellent job Gary!!!) I have recently installed and broke in the new diff and my steering feedback is gone!!!
When I removed the old diff form the car, I could not turn the yokes in opposite directions by hand. I never put any tools on them for leverage, but I tried, HARD, to turn them by hand and they won't budge. The car is new to me, so I'm not sure who has been inside it. Bubba could've "set it up", but I don't know what has been done in the past.
Could the old rear diff be so tight that it wasn't slipping in sweeping corners?? It used to feel like a 4x4 in 4 wheel drive on pavement. The front end used to hop, but now everything feels o.k. The old diff never hammered in tight corners, but that is the only thing I have done over the winter.
Whatever the case may be, Gary and a new set of 3.73's REALLY woke my 454 up!!!!
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
Yes. But, that's not saying anything was necessarily wrong with the old diff., just that tight posi's can present problems in the parking lot and when you lean on the throttle coming off a corner. Tight posi's like Moroso's are great at the drag strip, but I've found that kind of setup too tight for my purposes. Apparently you have too.
Bothers me, though, that you said it didn't hammer. Sounds as if it was acting more like a spool, and makes me wonder if Bubba may have welded up that old diff.
btw... nice ratio
Bothers me, though, that you said it didn't hammer. Sounds as if it was acting more like a spool, and makes me wonder if Bubba may have welded up that old diff.
btw... nice ratio
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 2,039
Likes: 105
From: State of Confusion!!!
2018 C2 of Year Winner
Someday, when I get a spare few minutes, I'm gonna take the cover off and have a look. Hard to say, but I know my car handles better now. Much better that when I parked it last fall!!!
Tech Contributor
Joined: Aug 1999
Posts: 15,136
Likes: 3,939
From: Connecticut, USA
I may be able to help here.
DIP- your diff I rebuilt is not setup stock as the original one was. The posi springs were not used in my job.
With a stock posi the 4 springs are in constant tension on the side gears in the posi, they require 40-70 ft/lbs of force to break loose unless there are broken clutches in there.
With my setup there is no resistance from springs and the yokes can easily be turned against each other. You will have posi but you will not have the constant force on the clutches and they will slip in corners without hammering.
Here is a new Eaton with the springs
Here is one of mine
DIP- your diff I rebuilt is not setup stock as the original one was. The posi springs were not used in my job.
With a stock posi the 4 springs are in constant tension on the side gears in the posi, they require 40-70 ft/lbs of force to break loose unless there are broken clutches in there.
With my setup there is no resistance from springs and the yokes can easily be turned against each other. You will have posi but you will not have the constant force on the clutches and they will slip in corners without hammering.
Here is a new Eaton with the springs
Here is one of mine
