Hi Anyone. June 12, 2004

My name is Roger. My wife and I have owned a '72 Datsun 1200 for 23 yrs. Great car. People want to buy it all the time. Recently instqlled our third engine. This time an 1979 remanufacued A12A; bought it from an engine shop; was sitting on its on pallet and plastic wrapped. Didn't know its perferral parts were different locations than our original A12. Anyway we have it running.

It has always had a 3 speed automatic and we want to change it over. On the Southern Califonaia freeways running at 75-80 mph the engine must be reaching 3.5-4.0 thousans rpm's. We want it to run at about 2.5-3.0 thousand rpm's traveling between 75-80 mph if possible. Use car for business.

I found a '79, 210 station wagon with an A15 and having a 5 speed; odomewter shows 120,000 miles. Car in good shape. Also found an '80, 1200 sedan with asn A15 but an automatic.

Question we have is which trans and dofferential would be the easiest to pull and attached to our '72 ? I'm thinking the A15 with the automatic has a better gear ratio in the differntial to handle the A15 so that might the eaiest to change ? What about just taking the diffential off and putting it in ours. Would I also have to remove the rear axle and switch them as well.?

Any suggestions would be appreicated. thanks you,

Roger and Charlene Seymour .