Moses, You have been an incredible source of information to me. I recently (several months ago) had my 1985 258 professionally rebuilt.  It was balanced, torque plated etc etc.  You helped me then.  My 1985 CJ7 is completely stock, no changes seem to have been made.  Components are all original to this jeep and are OEM.  Currently the 258 is on an engine stand and I have removed the trans and T case.  The T5 and Dana 300 are now sitting on my bench.   I have watched the Dana 300 rebuild her