What did you replace your trans with? Salvage yard trans, rebuilt trans, new trans, classifieds trans? If the trans is not new or rebuilt I would open it and just look to see if 3rd is worn, if everything lines up, etc...
A quick way to tell if something is f-ed in the case is just turn the input/primary shaft. Differential turns you are probably good. Differential doesn't turn your trans is proabably hosed in the gear box.
Always open a used trans saves you work later down the road. I did it on my 300ZX, Datsun 280Z, Imported Honda Civic Type-R, and now I'm doing it on my Sentra project car. I never take anyones word that it's good to go.
A quick way to tell if something is f-ed in the case is just turn the input/primary shaft. Differential turns you are probably good. Differential doesn't turn your trans is proabably hosed in the gear box.
Always open a used trans saves you work later down the road. I did it on my 300ZX, Datsun 280Z, Imported Honda Civic Type-R, and now I'm doing it on my Sentra project car. I never take anyones word that it's good to go.