Quote:
LittleFireyOne wrote:
Apparently the Sunny Sport wagons had a 3.7 H150 but being a load carrying vehicle you'd think Datsun would have gone with a 4.1:1?
For Australian production, there were only two ratios available in the H150 differential.
A 3.9 to 1 was used in all cars powered by an A12 or A14 engine [most of the Sunny wagons in Australia were A14 equiped]
A 3.7 to 1 ratio was used in the A15 powered Sunny Wagon because the increased torque of the A15 engine allowed it to handle the load quite happily with the slightly taller gearing.
On a global scale, apparently a 4.11 to 1 ratio was available in a particular performance model of B310 but in Japan only.
Ddgonzal has the details on that one.
In the US there was a 3.54 to 1 ratio for 'thrift' models & perhaps some other models too.
Lets review.
H150 diff ratios
4.11 to 1. Japan market only. Made of unobtainium
3.9 to 1. Most common version, widely available in most B210 & B310 models in Australia.
3.7 to 1. In the Aussie market, these were seen only in A15 powered B310 Wagons.
3.54 to 1. US market only[?] Not too hard to find but difficult and/or expensive to ship to Australia.
Apparently a 4.11 to 1 ratio ring & pinion was available from Nismo as a performance part at one time.
As has been said, the Alloy H145 diff from standard passenger model B10 car is a 4.11 to 1 ratio & will physically bolt into a H150 housing, but with an uncorrectable axle alignment problem.
They are not designed to handle the higher weights of the newer models & the power output of the larger engines.
If they were up to the task then Nissan would have continued their use into the B210 & beyond.
There's got to be a message in there.
Transfer
