810 Maxima auto trans swap

[Guest rwreber]

Hey, guys. I'm fairly new to this board and fairly new to 1st generation Z's. I've picked up a '77 that is an automatic. I never thought I'd like the automatic, but it's not as bad as I thought. The big problem, though, is the high cruising rpms. I was talking to a pretty knowledgeable Z-car guy about what's involved in doing a 5-sp manual swap, and he casually mentioned that the early 810 Maximas with a straight six had a sweet overdrive automatic that was an easy swap.

 

Can anyone shed some light on this for me? What's the identifying Datsun # for this trans? What's involved in doing this swap? What's the o.d. gear ratio? Has anyone actually done this swap? Thanks in advance.

 

Ralph

[DavyZ]

Too difficult (obscure?) to say, but since the older Maximas had the same L6 engines, I would say this is true. I would check to see what you rear diff gear ratio is as well. The most practical (cost effective) rear gears are 3.54's, which came stock on most Z R200's. Just a thought.

 

Davy

[Guest rwreber]

Thanks for the response, Davy. I guess my question isn't generating much interest since I'm talking about keeping the L6. My thought was to get a late ZX R-200 with 3.90's and use the o.d. automatic for a good all around streetable...and cruiseable...setup. (My '77 automatic now has an R-180 with 3.54's.)

 

I did find a website that lists the various Nissan auto trans. The 80-82 Maximas (2.4L) used a L3N71B trans (apparently the same as in 80-83 zx's), while the 83-84's used a L4N71B. It's the latter one that I'm assuming is an o.d. Interestingly, the chart shows 84-88 200sx's using the same trans. That's helpful, but I'm still wanting someone who knows a lot more than me to confirm all this...and tell me what's involved in the swap.