This couldn't come at a worst time...Getting ready to leave and I don't have enough time to get everything done before I leave for deployment...Can you replace that band with the transmission in...or do i have to take it out and take it in...I replaced the VB with suncoasts (shift kit/GM conversion solenoid) also has upgraded strut and anchor...will that band come out once the VB is removed?
I'd take it out and take it apart.
Reason?: That scrubbed-off band material goes right into the tranny fluid and can plug critical passages in the valve body. That will eventually do more damage. Been there (WAY more than once...)
There is a pretty good chance there is some scoring on your old drum. You could pull the pan/filter and look at it. But if it is scored, a new band on a scored drum won't live very long.
Don't forget to power flush your convertor and cooler really well and replace the o.e.m. inline thermostat/check valve in the cooler lines.
I don't know what you have for power mods. If you have been late getting at band adjustments, the holding power of the band is greatly reduced as the fulcrum/lever that actuates the band has most of it's holding power in the initial engagement of the band grabbing the drum. I will readjust mine after a thrashing at the track with drag radials. A drain plug in the o.e.m. pan works well for this..
If it is a case of your engine simply over-powering the tranny, it will happen again and again until you get some stronger parts in there. I went with a HD band out of a 1970 440 Chrysler New Yorker, thin clutch packs, billet shafts (some other goodies) and a shift kit. It is tough enough for now. It cost me a small fortune learning what you
can't do with them.
The 48RE is a 30 horsepower vampire and is an ancient design but it will work if you give them 1/2 a chance.
Ronnie