1) heated and dropped the ring gear off the 61 flywheel and 63
2) had a spacer ring machined
3) heated and dropped both spacer and 61 ring gear onto the 63 flywheel
4) tig both onto the flywheel
Simon at Speedtech in Wellington NZ did mine in a couple days when I blew my old clutch on the 61. We put the vr flywheel and paddle clutch in but when he went to start it the motor wouldn't engage. He was puzzled but sorted it for me, have not been shy with dropping the clutch and have since replaced a clutch too and the fly wheel is mint.
Very happy with our solution. Have asked in other forums if anyone had this issue but never came across it.
- CLuTZ likes this