I bench press 275....spend a week installing a tranny and all the bracketry, only to discover at 8pm on Thurs night that it's got a bad shaft internally, and you are leaving at 8am for a trip....
add in 1 beer and an attitude, and removing everything to toss in another tranny and making it into the house in time for the 10:15 weather is doable....
Lay on yer back on the shop floor....head towards the t-case....pull the assmbly loose, catch it with your arms and feet....lower to one side....grab the next one, pull it on your chest, cuss, get some leverage, cuss, and viola....it's in.
BTW: do not try this without professional supervision, not recommended for human comsumption, and not responsible for any hospital stays that result...