I got lucky, my t-5 came from an 85 v-6 s-10 and when I pulled it I grabbed the pressure plate and clutch disc. The clutch disc was identical to the stock one but with the correct number of splines but the pressure plate bolt holes were different. I test fit the s-10 clutch with the stock pressure plate and it worked fine- and since it was in pretty good shape I'll use it til it wears out and then replace it with one just like it.

'51 Chevy 1/2 ton w/'62 261, HEI, offy, fentons, dual carter/webbers, t-5 & 12 bolt posi