63 differential rebuild ?

[Robert B.]

Have mine all apart and ready for rebuild. I have been told by a someone in the rebuilding business that the 63's are very vulnerable to internal breakage, he strongly recommends getting guts from a 71-9 unit. Have a lot of people had problems with these in the past.

[Harry S.]

Re: 63 differential rebuild ?

The posi unit was made by Dana. Why not post a picture of the posi unit as it may have already been replaced. The Dana unit went from together to apart frequently. Both my 63's have the newer units.

[Joe L.]

Re: 63 differential rebuild ?

Have mine all apart and ready for rebuild. I have been told by a someone in the rebuilding business that the 63's are very vulnerable to internal breakage, he strongly recommends getting guts from a 71-9 unit. Have a lot of people had problems with these in the past.

Robert------


As Harry mentions, the 1963 positraction unit is the weak point of the 1963 differential assembly. Always replace these with the Eaton unit used for 1965-79.