ok i have a YS1 and i was looking to rebuild it but i do not know if it came from the 92-93 gsr or from a ls
is there a way to tell
does any one have one of thows diagrams like for the L3 trannys to tell the difference between dx, si and hf but for the YS1

 

92-93 GSR B17A1 pimpin tranny

 

that is what the guy said it was but i know that some YS1s came in the ls to
so is there a way to tell the difference

 

i bet there's a way to tell.

casting marks for 88-91 civic/crx
L3 P20-A000 = DX/LX/HF
L3 P20-B000 = Si/EX/ZC


more than likely there is a casting mark to differentiate the two.

 

i need to know for the YS1 not the L3

 

B-series Cable Transmission Specifications
Transmission Name Engine Counter Part 1st Gear 2nd Gear 3rd Gear 4th Gear 5th Gear Reverse Final Drive
Y1; Y1 w/LSD JDM B16A SiR I 3.166 2.052 1.416 1.103 0.87 3 4.266
YS1 USDM B17A1; JDM B16A X-Si w/LSD 3.307 2.105 1.458 1.107 0.848 3 4.4
S1/J1 JDM B16A X-Si 3.23 2.105 1.458 1.107 0.848 3 4.4
S1/YS1/A1 USDM B18A 3.166 1.857 1.259 0.935 0.742 3 4.4

 

It was an example of how you could tell. there are casting marks on the transmissions. I wouldn't be surprised if there was casting marks to tell the difference. how would Acura be able to service the transmissions without knowing WHAT transmission it was. take a guess and get the wrong parts, now what?