I did my trans swap last weekend. Was pretty similar. I didn't take the exhaust apart or the fan and shroud. I did drain the radiator and remove the heater hoses at the firewall.
Also I removed the transfer case first then unbolted the bottom bell housing bolts to remove the transmission. Installed in reverse order.


1990 LWB RS A/T
1990 LWB Base A/T
1991 LWB LS A/T Going...Going...