pezfallout wrote:Okay, so if I gathered correctly from reading the compiled post from the SD22 section about these transmissions is that if I do swap an LD into another chassis (2X0Z/280ZX) that I'm going to have to take the transmission that it's mated to with it.
I've been making some assumptions for a couple of years, and nobody has piped up to say I'm wrong . . .
The situations are different for the SD and the LD engines. Bear in mind that the SD and LD engines share
NO parts.
The LD is derived from the L-series gasser block, and at least one person has converted the LD28 into an L28 and is running it in a Gen1 Maxima (he is not member here). The rear of the block (bolt pattern for the transmission) is the same for the LD28 and L2x gasser. Therefore, leaving aside the issue of the MT flywheel and associated spacer for the LD28, an LD28 should bolt up the the OEM trans in an 280Z.
Is the 5-speed from the SD22 720s the same(-ish, sparing gear ratios possibly?) housing/length/etc as the ones from the 810 diesel sedans?
The SD engine has (from memory) an SAE #3 or #4 bolt pattern, perhaps rotated a number of degrees. The
only transmissions that will work with an SD block is:
- The FS5W71x that came from Nissan behind the SD in 720s;
- The TorqueFlite 727 behind the SD33 in IH Scout/Traveller/Terra 1976-1980;
- Whatever manual trans that IH used in those models (MTs were much more common than the TF727);
- One more possible exception is the trans used in the 2WD Jeep aircraft tugs with SD33 that show up on eBay regularly these days.
So, putting an SD engine in another vehicle restricts you to those four choices, unless you fire up the milling machine.
While the
guts of any 2WD FS5W71x can probably be shoehorned into any other one, the SD "bellhousing" (the entire front case half of the transmission, really)
must be used if you want to bolt it to an SD. That's how, for example, one
could put an SD22/25/33/33T into a 240/260/280Z chassis: by using the Z's transmission but the SD's trans' front case half.
Which, if you think about it, is what I did in that FS5W71x post of mine, but in reverse: I put everything from a '79 gasser 620 trans into the front case of my '82 SD trans' bellhousing. It's still running around here in that configuration, two+ years on.
And does the -B on the transmission model designate it as a diesel variant?
No. It's more like a revision letter.
