Replacing Front Seal on a 727

unless yoou want to do engine work, just pull the tranny. drop the pan first to get most of the oil out of the way. when you have the tranny out, pull the convertor out quickly. you may then be able to see where it was leaking(sometimes). then stand the tranny on end in a bucket and secure it to your bench somehow. adjust the front band scew all the way in tight. remve the pump bolts. there are two bolt holes that are threaded 5/16. use a slide hammer with the aproppiate tip and out comes the pump. i like to reseal the whole assembly. so that means a front seal, bushing, gasket and o-ring. buy your parts from a tranny place. napa and those stores sell crap. look at how the bushing sits in its bore and press in the new one. use some vaseline to hold the spring in the seal in place and put some locktite on the outer periminer of the seal and carefully tap it in place. you could test fit the pump body on your convertor to make sure it will fit. reassemble the pump and place it on your convertor again to make sure it turns. find a longish 5/16 bolt and cut the head off. now loosen the band adjuster. place the gasket in place and put the cut off bolt in one of the pump bolt holes. this will be our dowl, so put it in a handy place so you can align the pump to it. lube the o-ring with something slippery. put the pump over the input shaft, align with the dowl and let the pump slide down to the case. now give it a strait hard push and it should just "pop" in and bottom out. put some locktite on the pump bolt washers and screw them in. put some vicegrips on the input shaft and pull up and down to check for endplay and make sure it turns. ajust the band to two turns, change the filter and pan gasket and your done. easy stuff.