I am looking for a couple reverse gears to rebuild my 71 z tranny. Anybody know a good source?

This mighthelp you out - http://www.carpartsmanual.com/datsunS30/DatsunZIndex/PowerTrain/TransmissionGears/4Speed/tabid/1707/Default.aspx

Find your part number, then go here - http://www.carpartsmanual.com/datsunS30/DatsunZIndex/PowerTrain/TransmissionGears/4Speed/tabid/1707/Default.aspx

and put the part number in the search box. The one I picked actually shows as available but I don't think you'll know for sure until you call or order it. Notice also that there are two 1971 4 speeds. If you have a post august 71 4 speed, it looks like any 4 speed after that might have a gear set that would swap in, based on the "superceded" comments.

Probably cheaper to get a later model 4 or 5 speed and swap.

I've got an entire spare '70-71 transmission that I know is good, could be cleaned up and installed, or cannibalized for parts. But shipping it to Iowa could be a bit spendy.

Have you tried the Nissan dealer?

I bought bearings and syncros here: http://www.drivetrain.com/parts_catalog/manual_transmission_overhaul_kits/nissan_4_speed_transmission_parts_fs4w56a_f4w60_f4w63_f4w70b_f4w71e_and_f4wf60a.html#F4W70B

The second link is the same as the first. I have the parts numbers--can you give me the link to the parts site?

Whoops. Here it is - http://courtesyparts.com/

Don't try to put you vehicle description into the Search box, just put the part number in the box on the right. I have ordered directly from the web site, but you can call them too. Good luck.