Lagging when shifting?? (727 auto, w/ full manual valve body)
I was thinking about taking it to AAMCO.
DO NOT (please) TAKE IT TO AAMCO or ANY OTHER chain, big box, or high volume "all purpose tune-up, muffler, and trans shop"
IF you must, find and check out an OLD one or two man solid local shop, and ask around about their reputation.
AAMCO is well known around the world for being all the way from just pain inept and stupid, to being a complete rip-off
Way way WAY back in the 70s a shipmate of mine took his 64 Chivvy in to them. Not only did they NOT do a good rebuild, but........
They left the Chiv 283 "hang" on the mounts with the trans out, the distributor cap got cocked against the firewall, and broke the cap and rotor If that was not bad enough, they did a sloppy job of installing the battery cable and when he parked it somewhere and came back, THE CABLE had WELDED ITSELF to the hot exhaust manifold and had BLOWN UP the BATTERY!!!
And no, he never did "collect" for all of it, exactly.
My own Dad--who should have known better, and didn't bother asking me--took his Icky Bleack Vsick into them around 78? Charged him 1500 bucks and it went for about a month. He finally asked the local retired Pontiac garage's expert "wah?" and THAT guy, a good friend of my Dad and I, pointed him to the shop he SHOULD have gone to. Turns out the trans never needed rebuilding at all, and the reason it failed was the work AAMCO did on it.
Back then, 1500 bucks was a fairly expensive lesson
some stuff:
https://www.google.com/search?num=2...4l0l1036848l16l16l0l3l3l0l253l1627l4.7.2l13l0
