Go Back  Offshoreonly.com > Technical > Drives and Lower Units
Six Drives and 3As >

Six Drives and 3As

Notices

Six Drives and 3As

Old 11-07-2013 | 08:28 PM
  #1  
kcsteve124's Avatar
Thread Starter
Registered
 
Joined: Oct 2003
Posts: 269
Likes: 0
From: Lees Summit/Gravois Mills Mo.
Question Six Drives and 3As

I have two questions for the masses.
Question 1 On a straight V bottom with six drives how does it handle around the docks with the props spinning inward as opposed to spinning outward?
Question 2 On a Speedmaster 3A the part that makes it an "A" is the lower half right? If this is true my question is can you take an old #3 and change the lower have and make it an 3A?
Thanks
kcsteve124 is offline  
Reply
Old 11-07-2013 | 10:03 PM
  #2  
Registered
 
Joined: Jul 2009
Posts: 8,527
Likes: 706
From: Taunton Ma
Default

There's more to the differences than just the lower. Sorry I don't know the specifics.
Unlimited jd is offline  
Reply
Old 11-07-2013 | 10:22 PM
  #3  
Registered
20 Year Member
 
Joined: Oct 2003
Posts: 262
Likes: 1
From: MD
Default

Spinning in will give you more bow lift and a couple more mph at the top end but not as easy to maneuver while docking.
All the parts are larger except for the u-joint in a 3A it also uses the SM VI prop shaft so your old SMIII props will not fit. It's also rated at 750hp
C5Steve is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.