i think that the w/p bolts are a specialty bolt. the reason i say that is, if i remember correctly, they have a drill hole that has nylon in it. they don't use a lock washer as they would rub the pulley.
i have a 230 block. THIS IS NOT THE REALLY SOUGHT AFTER COLD WEATHER BLOCK. it is the same as the 630 casting. per 440 source not all 230 castings were cwb. this block has been hot tanked and all threaded holes cleaned with craftsman thread cleaning tool, not a tap and die set. comes with main...
please help me decipher the r&p numbers. someone says these are a mismatched set. i took them out of my 79 d200 and put 3.54 set in.
ring gear numbers
10 6 78 -date of manufacture
41-10 - gear ratio
pinion gear numbers
c dana d1 -????
41-10 - gear ratio...