I am looking for a 39/11 differential from a 210. According to my 81 210 Datsun Service Manual this ratio was used with the A14 engine with a 4 speed transmission. I have searched and searched and only found the 37/10 ratio which I have install in my 72 1200 Sedan along with an A15 engine and 5 speed transmission. I am interested in purchasing a 39/11 if it exists?!!!
My name is Tom Shhroyer, I live in Pacifica, California just south of San Francisco.
My contact is tom.schroyer@yahoo.com or 650-355-3453.

Hi Tom,

39/11 = 3.545, which is the rarest of the ratios. Last year I sold two of them.

It is the slowest ratio, performance is "leisurely". Except for fuel economy, the 3.889 is much better both in acceleration and top speed.

Quote:

Tom, I have a 3.9 what rear end are you using? h-145, h 155 or h-190. I have them all.

John
I live in Florida
7272243480

All Datsun 210 (B310) use the H150 differential.

Just a humourous aside, I put the part number for the 39/11 H150 ring & pinion into google & got a lot of responses for this part at Russian Nissan dealers. I never pursued it any further, maybe there's a stash of these in some old Russian warehouse. I found the part number in the wiki, after looking for the part number for the H150 37/10 R&P.

I am looking for fuel economy and to lower RPMs at speed.
Tom

If you find another one let me know.