differential id

[dv82xl]

greetings: I have a 74' 260Z manual transmission. I'm not sure if it has R180 or an R200. attached pictures...thoughts? 

[jhm]

Just from those photos, I'd say you've got an R180.  The 200 has a much more "bulbous" carrier case and rear cover.  This video does an quick and dirty job illustrating the differences and distinctions:  https://www.google.com/search?q=identifying+r200+vs+r180+with+pictures&client=firefox-b-1-d&sca_esv=b960a84cc5c43ab2&ei=haU1afOCFb_m5NoPmuGuoAY&ved=0ahUKEwiz2Zen7auRAxU_M1kFHZqwC2QQ4dUDCBE&uact=5&oq=identifying+r200+vs+r180+with+pictures&gs_lp=Egxnd3Mtd2l6LXNlcnAiJmlkZW50aWZ5aW5nIHIyMDAgdnMgcjE4MCB3aXRoIHBpY3R1cmVzMgUQIRigATIFECEYoAEyBRAhGKABMgUQIRigATIFECEYoAEyBRAhGKsCSOYbUNoGWOUZcAF4AJABAJgBdKAB5wqqAQQxMS40uAEDyAEA-AEBmAIPoAKQC8ICChAAGLADGNYEGEfCAgUQIRifBZgDAIgGAZAGApIHAzcuOKAH0zGyBwM2Lji4B4ELwgcIMC4yLjEyLjHIBz2ACAA&sclient=gws-wiz-serp#fpstate=ive&vld=cid:1284de3c,vid:s3egG-klPBg,st:1151

 

For a more detailed and in-depth discussion of the technical differences between differentials, see this Pinned post here:  

 

Just as an FYI -- you have posted in the "FAQs" section, which is typically reserved for posts of an informational/educational nature.  Kind of like a repository, or library, of technical information.  I would suggest moving this thread to the "Drivetrain" section down below:  https://forums.hybridz.org/forum/11-drivetrain/.

These sub-forums are intended for open and freeflowing discussions.  You can move the thread yourself; or I can do it for you, if you prefer.  Your choice.  LMK if you need any help.

 

Hope this answers your question.  Cheers.