If You have not purchased Suplex Kit yet - don't. Too expensive for the slight improvement You will think You received. Buy a Mulberry setup instead.
If You have already purchased a Suplex Kit - Follow the instructions.
I have tried the Suplex Kit on all 3 of My Morgans. '61 DHC, '63 +4-4Str and +8 Bitsa ('98 chassis) Kit is well made IMO. Just not enough benefit for the cost IMO.
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Seattle