ys1civicsi

Alright I have a Cable YS1, now here is were it gets leary. 2 Years ago i bought a Hydro Y21 tranny from a OBD1 JDM B16 swap and helped my buddy swap all the internals including the LSD into the USDM cable YS1 Casing From a 92-93 LS trans. Now after running this trans on an LS swapped 91 si hatch the final drive sucked on gas mileage. Now I have gotten an extra set of gears laying around from a 90-93 ls trans that are not the YS1 a believe they are USDM J1 or S1 gears. NOw will this 5th gear from the 90-93 trans fit onto the 92-95 Y21 Shafts or do I need to get a 5TH gear from a 94+ tranny. Thanks or all your help im just not sure what will fit and what wont. I have searched and posted in the Civic/Integra forums before but got nothing so if someone would be greatful enough to not be a ******** and tell me to search it would be great. Thanks Guys it is appreciated

soulpwr

The 5th gear needs to be 92 and up to work. If you are unsure of the year of the trans it needs to have the large spline mainshaft to work. So if your existing clutch disc fits it then it will work