Transmission oil

Mineral base GL-4 (not GL-5) in SAE 80W-90, 90 or 140.
Since you're upstate (where?), 80W-90 will be fine. Unless you drive only in hot weather and do foot to the floor power shifts, SAE 140 is unnecessary.
Several choices at Summit, from cheap to expensive. Others available elsewhere.
Sta-Lube was recently a good option, but I'm not seeing it available at a reasonable price.

PennGrade 1 77296 PennGrade Multipurpose Classic GL-4 Gear Oil | Summit Racing
Driven Racing Oil 04530 Driven Racing Oil GL-4 Gear Oil | Summit Racing
Richmond Gear RICHGL4 Richmond Gear GL-4 Gear Oil | Summit Racing
VP Racing 2703 VP Racing Classic GL-4 Gear Oil | Summit Racing