02' 1500 Tranny Question

[snkbitten6]

So bought this truck from my dad, the truck at about 50k blew the transmition, ended up in a recall... well rebuilt, at 80k blown tranny again, dealer fixed the recall with the recalled parts.... SO at 80k its fixed, truck now has 180k on it... Maintained perfect and fluids are perfect... Driving home today from class go from a stop light very light, gets to the top of 1st, acts like its a stick car and the clutch is slipping and truck revs up. Come up to the next red light come to a stop. Check engine light comes on... I look at oil pressure thinking something went wrong. Guages look good besides check engine, take off soft again, no power, was in 2nd gear it felt like off the line, just bogged. drove it home got it up to about 45 to 50 never shifted..... Well parked it, just took it out, put it in 1st,2nd,3rd, manually, worked perfect, back in drive, went to pull out of my street, no power felt like it was slipping again, and then caught and drove fine, till 3rd, it slipped again, then shifted.... Well then drove it back after turning about it drove fine for 1-2nd then did it again.... So it has done it in all the gears, and reverse is perfectly fine btw.... So question, whats going on, i know nothing about chevy transmitions... Is this thing fried? if it is junk yard pull? or rebuilt it heavier? its my Daily driver, and car/boat hauler, Thanks in advance guys! Dan.

 

 

sorry i probably posted this in the wrong spot... Ill put it in the tech department.