So.... Can you tell em about my car?

[BlackTTC6]

86 Cutlass supreme.. I know it has a 307 but otherwise nada. What rear does it have? 7.5? What transmission? 2004R? What rear end gears?

 

[Furtrader]

Go to a GM dealership parts counter with your vin.They will help you.
Or try this:
http://apps.oldsgmail.com/vin.asp
If you have your build sheet or your spid sticker is there(underside of trunklid,I believe),decode the rpo option codes using this link:
http://apps.oldsgmail.com/rpolookup.asp

 

[82355supreme]

If it's not a 442, yes a 7.5" rear with 2.73,3.08, or 3.42, but most likely 2.73 & if it's an overdrive, which I'd bet it is, the trans. is a 200-4R

 

[1fast87olds]

IF its a 3spd..... id guess th200c ( metric 200)and possibly 214 gears with the 7.5

reason why is my car was like that 307 Y 200c 7.5 2.14 gears
plus im guessing

u can also look it up on the underside of ur deck lid

 

[KMac]

i have an 86 supreme and it has the 200c with the 7.5