wayno Posted January 18, 2014 Report Share Posted January 18, 2014 See the transmission in the back, it is supposed to be some kind of auto transmission, has anyone seen one like this before? The one on the left is what I want to know about in the photo below. 1 Quote Link to comment
datzenmike Posted January 18, 2014 Report Share Posted January 18, 2014 It's awesome wayno!!!! Looks like a column shift 4 speed standard. An RS4W71B. Not used on anything shipped here to the North American market. I have reason to believe that this is really a 3 speed with an overdrive, still a 4 speed though. The OD synchronized hub is mounted on the (lower) counter shaft behind the adapter plate and not the mainshaft.... fascinating. Reverse gears are just in front of the adapter plate. The starter is on the left like a SD diesel or old Roadster. (although this trans wasn't available for the roadster, here at least) You've made my day. What other Nissans had the SD in them? Tell me more... Quote Link to comment
wayno Posted January 18, 2014 Author Report Share Posted January 18, 2014 So would the front case be the same as a standard 5 speed case, or would it be different inside? It was supposed to be an automatic, but we were baffled by the clutch arm sticking out the side, it's connected to a SD23 diesel engine that a guy bought on the diesel forum. I actually thought it might be something like that VW bug transmission that you just shifted without using the clutch, one could start out in fourth if you wanted, but it was faster off the line if you used the gears, it was like an automatic, but I never owned one, so I don't know all the specifics about it. Quote Link to comment
datzenmike Posted January 18, 2014 Report Share Posted January 18, 2014 I should imagine the front case is identical to the regular 71B 4 speed or 5 speed. The location of the reverse light switch may be the difference.All 4 and 5 speeds I've seen had the reverse switch here... Some are an inch to the rear on that boss This ones been plugged and a new hole drilled forward of it. Quote Link to comment
wayno Posted January 18, 2014 Author Report Share Posted January 18, 2014 So basically you believe this is a 3 speed on the tree(column) with an overdrive. Quote Link to comment
datzenmike Posted January 18, 2014 Report Share Posted January 18, 2014 Pretty sure. I guess 4 in the tree actually. Main shaft has 1/2nd and third (is straight through). Reverse. Adapter plate and then the OD gear. The OD synchro is on the very back of the counter shaft Quote Link to comment
ggzilla Posted January 18, 2014 Report Share Posted January 18, 2014 It came in Japan-market 720s with the SD22. Its a standard transmission with no semi-automatic features. The larger SD23 came only with 5-speeds including the RS571 (5 on the tree) Quote Link to comment
wayno Posted January 18, 2014 Author Report Share Posted January 18, 2014 This transmission only has 2 shift levers on it that I can see, and it is connected to a SD23, it's one of them JDM used diesel engines, how can one get 5 speeds and a reverse with only 2 levers? He says the engine salesman said it had some kind of automatic transmission connected to it, but I have to admit, it don't look like any automatic I ever seen, and them guys might not even see what they are selling, it's all just a crap shoot buying from a place like that. Quote Link to comment
ggzilla Posted January 18, 2014 Report Share Posted January 18, 2014 I once found an L16 with 5-speed attached. Quote Link to comment
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