Fluid Flush Required After Rebuild?

[NavySeabee]

I had my transmission rebuilt a couple of months ago. Should I do a transmission fluid change due to the new transmission breaking in or just leave the Mercon V fluid they put in during the rebuild?

I've read as far as rear gear upgrade, the fluid should be changed shortly afterwards. Does this apply to the tranny also?

Thanks.

[martyo]

Let it ride.

[RF Overlord]

It depends on how thorough the rebuilder was in cleaning everything, especially the cooler. If it was mine I'd change it, but I'm A/R.

As for the filter, the majority of wear particles get generated during the first 10-15,000 miles from new. This is what the filter is designed to catch. After that first time, changing the filter is not necessary for normal maintenance. I would consider a rebuilt unit to be the same as new in this regard, but in your case, it's too soon.

[tbone]

Put a drain plug on the pan and change out 5 quarts every 2 or 3 oil changes.

[BAD MERC]

It's cheap-ass insurance!!!!!!!

[Guittard22]

As I recall ford did the work on your car pete right ? They may have flushed and replaced the fluid to make sure that any metal shavings or anything that could harm the rebuild was out . Could call them in ask could not hurt .


Just my 2 cents

[TORINO]

I would change the filter in about 8-10000 miles then you can also see what is in the pan. Should be clean as in no clutch material and very little on magnet if there is=back to builder