Trans fluid

[DartGT55]

What kind of trans fluid do you put in a 727 small bolt trans and not knowing what’s in there now can you mix 2 different fluids per say synthetic vs dexronmercron

 

[RustyRatRod]

I would drain as much out as I could and go back with Dexron 3.

 

[Dana67Dart]

OR if you trust the shops have them do a fluid swap (dropping the pan and filter would be wise) but they can swap out whatever is in there with fresh fluid without dropping the pan

 

[Mopar Tim]

I would drain as much out as I could and go back with Dexron 3.

Perf builders prefer type f. Drain it out as much as you can. Refill

 

[Duster346]

No need for type f with modern friction materials, and the stuff will eat the bushings out of a transmission.

 

[oldkimmer]

No need for type f with modern friction materials, and the stuff will eat the bushings out of a transmission.

Plus it will eat the seals. That’s why Ford cganged to Dex/Mercon. Kim

 

[Bewy]

I would use syn fluid.