02T are the 5 speeds, 02R are a 6 speed versions of the 02T, 5th (and 6th) are stronger due to an extra set of supporting bearings, but otherwise its the same. I'm pushing almost 200bhp on an 02T 5 speed, done 75k miles no issues so far
nice model...I might be making an 02J gearbox model here soon.....havent cracked her open yet....I suspect I have a broken first/second selector...maybe more. Hoping the carnage is minimal