Thank you for reading, any help is appreciated. I have a 1976 pearson 365 with a paragon SAOD transmission that burned up. There are no hard parts to be found for rebuilding it, so I purchased a velvet drive 1 to 1 ration 1017. Everything can be refit (ie oil cooler and shifter cable) but I can't find any info on the drive shaft or coupler. The original driveshaft and coupler are too small and won't bolt to the trans yolk on the borg-warner. I know I can't be the first person that has done this swap. Thank you for any info.