Velvet drive 71C transmisssion....

[paladin]

Trying to work up a drive train for a boat, using a kubota based diesel and a 71C transmission.....the intent is to mate it to the drive shaft thru an Aquadrive CVA joint....I can't find the data/info on the bolt pattern at the rear (output end) of the transmission.....anyone got an idea......a real knowledge.....?
Thanx...

[Bob Adams]

Looking for the flange data Chuck? I've got the Velvet Drive service manual here on a CD somewhere, may be listed there. I'll look for it in the morning.

[The Bigfella]

I'm sure I've seen it on the net somewhere.

[The Bigfella]

are you looking for the PCD for part 2 in this diagram?

http://www.marineparts.com/partspages/velvetdrive/velvet1.htm

[George Ray]

Do you have a particular model (reduction) in mind?
A quick google indicates that the output coupling varies. There are 4", 5", thick, thin, course and fine spline.

http://bpi.ebasicpower.com/mm5/graphics/00000001/ALT23328.jpg

Here are some dimensions and some indication that 1:1 models are all 4" dia.
http://www.tadiesels.com/borg_warner-inline.html

http://bpi.ebasicpower.com/c/ALL3G/Borg-Warner+Velvet+Drive+Replacement+Parts


4547BA .... COUPLING (10-17 ONL Y) 4" 10 spline
4547AY .... COUPLING (10-18 ONLY) 5" 10 spline
http://www.simplicity-marine.com/Files/1-1assembly.htm

[paladin]

Guys...thanks....I ordered a PMR260 gearbox and an aquadrive CV unit and I think it will work better......hopefully