Today I show you a new old stock 5speed gear box “ FS5C71B” which is used for Z432 , Fairlady 240Z series and Skyline GTR . ( this one is specifically derived to Skyline GTR , as a part number 32010-R5530)
After Jan 1972, (for example HS30-10635 And after )
FS5C71B was applied, but gear ratio was different from other model. Those three types of cars has very nice ratio.
1st 2.906 (3.321 std)
2nd 1.902 (2.077 std)
3rd 1.308 (same std)
4th 1.000 (same std)
5th 0.864 (same std)
Rev 3.382 (same std)
I have a question about export Zs which have 5 speed , are they have this special gear box ?
I am thinking using this for my 240ZG , I will replace S20 front section to its original
L24 one then I will sell the S20 front section (so many S20 owners in Japan want to swap FS5C71A to FS5C71B, because it’s good feeling and plenty of parts availability)
Also I need to have a spline type propeller shaft (my ZG has a flange type as an original , soon after they went spline type ) this one will not be difficult to find because so many S30 models used this one since September 1971 (I mean longer one for the diff mount changed)
Or should I stick with its original gear box and propeller shaft ? Everything on this car is original down to exhaust tip with its build date stamp. Hmmm..
Alan , please let us know.
Kats