Gents, the clinders are dropping in price too!!! After checking many sources I looked to see if someone posted rbld kits they had been keeping after giving up. To my surprise, i saw some new cylinders offered for less than $20.00 us. you could do both and save a tow bill. Last time i asked, the fuel cost after katrina had raised a basic tow another $30. when times are tight, it pays to have these goto sites at the ready. Those plastic cylinders work on ZF trans for Ford. And they have been on their f series and ranger trucks since the 80's. they use an o'ringed line and a pin on pickups. But at first, the NP435 used a brake style fitting. These, as i understand, are similar to the benz steel line and fitting. anyone overtightening this line had a leaker. its not rethreadable after it splits the plastic. hairline cracks after years of use also has been seen at the fitting. its a german design for Ford so it seems likely to be similar plastic