What's the difference ?

[eagle19952]

between WILLIAMS Controls....Pneumatic Transmission Modulator WM775 and WM775B ?

[luvrbus]

Just a upgrade the B has brass sleeve instead of the plastic and works at a higher pressure I think 75 lbs instead of 60 lbs but still needs to be changed every 50,000 miles

[eagle19952]

so...buy the B ?   

Just a upgrade the B has brass sleeve instead of the plastic and works at a higher pressure I think 75 lbs instead of 60 lbs but still needs to be changed every 50,000 miles

[luvrbus]

Yep buy the B I didn't even know you could buy the other but never check either