o own a 1990 honda civic with a ZC swap and crx si tranny and i was just wondering if a obd1 d15 tranny will bolt up to a zc engine?
what broke was were you put the cv shaft in is really loose would replacing that with a lsd fix my problem?

 

take the zc box apart and check that the diff hasnt broken any gears or anything inside, if its fine, swap out the brocken diff with a replacment one or a lsd and you will be sweet

 

yes it will bolt up, but if its a hydro trans then you will need a hydro clutch conversion kit.

 

and most likely your diff pin wore out and just crumbled and dropped all the spider gears if thats the case you can just replace it

 

it'll be fine unless the newer tranny is hydro