Well, I thought I understood Positraction. I have two old Chevys with positraction, a square body Suburban and a 63 Impala. The square body Posi works as expected.
The Impala will not roll when in neutral.
It is on jack stands now, with the driveshaft disconnected, and the real wheels are locked in place, will not turn. It feels like they are mechanically locked, as opposed to a friction lock (from brakes). When I last drove it, it seemed to move fine, and the rear wheels were not locked, but I noticed that it would not roll when in N, with the engine off.
No unusal noises. I have not inspected the fluid yet.
So, is there something in the positraction unit that would cause the rear wheels to lock as described, yet allow the car to easily move under engine power? Some quirk, or characteristic, or a known problem about to happen? No additive in fluid, wrong fluid, ?..
Before I put the transmisson back in it (the reason it is on jack stands) and connect the driveshaft and hope for the best, should I bite the bullet and yank out the differential and see what there is?
What do you think? Thanks in advance.
Chip
The Impala will not roll when in neutral.
It is on jack stands now, with the driveshaft disconnected, and the real wheels are locked in place, will not turn. It feels like they are mechanically locked, as opposed to a friction lock (from brakes). When I last drove it, it seemed to move fine, and the rear wheels were not locked, but I noticed that it would not roll when in N, with the engine off.
No unusal noises. I have not inspected the fluid yet.
So, is there something in the positraction unit that would cause the rear wheels to lock as described, yet allow the car to easily move under engine power? Some quirk, or characteristic, or a known problem about to happen? No additive in fluid, wrong fluid, ?..
Before I put the transmisson back in it (the reason it is on jack stands) and connect the driveshaft and hope for the best, should I bite the bullet and yank out the differential and see what there is?
What do you think? Thanks in advance.
Chip