1968 Differential Lead

[Jeff Grice]

I am looking for advise.

I have a 68BB with low miles. Just took out of storage and drove it about 50miles. I am getting a slight drip from the front of the differential where the drive shaft connects.

Is this something to expect after being laid-up and it will re-seat after driving? Or do I have a repair to do?

Thanks. Jeff ncrs 30292

[Bill Clupper]

Re: 1968 Differential Lead

Rear axle seal tends to dry up and harden if not driven. Better to replace it before it wears a grove in the companion flange

[Bill Clupper]

Re: 1968 Differential Lead

Rear axle seal tends to dry up and harden if not driven. Better to replace it before it wears a grove in the companion flange

[Joe L.]

Re: 1968 Differential Lead

Jeff----

As Bill says, you will probably have to replace the seal. However, there is the possibility that some "limbering up" will rejuvinate it. You have nothing much to lose by driving it for a while and see what happens.

Normally, I would just suggest that you replace the seal. However, replacement of this seal is not so easy. That's because to replace it you have to remove the differential pinion(companion) flange. When you remove the pinion nut in order to remove the flange, you will "upset" the pinion adjustment controlled by the crush sleeve. Each time that the pinion nut is removed, a new crush sleeve must be installed and the pinion re-adjusted. This is one of those "one thing leads to another" type jobs.

[Joe L.]

Re: 1968 Differential Lead

Jeff----

As Bill says, you will probably have to replace the seal. However, there is the possibility that some "limbering up" will rejuvinate it. You have nothing much to lose by driving it for a while and see what happens.

Normally, I would just suggest that you replace the seal. However, replacement of this seal is not so easy. That's because to replace it you have to remove the differential pinion(companion) flange. When you remove the pinion nut in order to remove the flange, you will "upset" the pinion adjustment controlled by the crush sleeve. Each time that the pinion nut is removed, a new crush sleeve must be installed and the pinion re-adjusted. This is one of those "one thing leads to another" type jobs.

[Jeff]

Re: 1968 Differential Lead

Joe/Bill thanks.

I think this developed over a year ago and last summer, as you suggested, it seated itself.

However, I think the prudent thing to do is to get it fixed...

Taking it in to the local vette shop in the morning.

Take care.

JEff

[Jeff]

Re: 1968 Differential Lead

Joe/Bill thanks.

I think this developed over a year ago and last summer, as you suggested, it seated itself.

However, I think the prudent thing to do is to get it fixed...

Taking it in to the local vette shop in the morning.

Take care.

JEff