4l60e Question

[JJH Jimmy]

I have a 2003 5.3 engine and 4l60e transmission in my 1972 GMC Jimmy and am using the advanced adapters 4l60e to np205 adapters. I had a transmission shop install the advanced adapters output shaft and rebuild the transmission. I have my engine in the frame and have all of the chassis work done and am getting ready to put the tub back on the frame. I test ran my engine and transmission to check for any leaks and everything was fine. I put 9 quarts of tranny fluid in it and shifted it into all gears and got it up to temperature. When it was warmed up the tranny fluid was just a little high. I have since stripped the wiring harness back off of the engine and transmission and it has been sitting for about a month while I finish up the body work. I noticed that there is tranny fluid weeping from around the pan gasket. I pulled the dipstick and the fluid level is about 6" higher than the hot cross hatches. Did I over fill the tranny? Is this normal? I would like to get this figured out before I set the body back on it. Any advice would be great. Thanks.