TheAMCForum.com Homepage
Forum Home Forum Home > The Garage > AMC V8 Engine Repair and Modifications
  New Posts New Posts RSS Feed - 401 going from automatic to T-10
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Click for TheAMCForum Rules / Click for PDF version of Forum Rules
Your donations help keep this valuable resource free and growing. Thank you.

401 going from automatic to T-10

 Post Reply Post Reply
Author
Message
AMX View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Oct/10/2011
Location: Toronto,Ontario
Status: Offline
Points: 116
Post Options Post Options   Thanks (0) Thanks(0)   Quote AMX Quote  Post ReplyReply Direct Link To This Post Topic: 401 going from automatic to T-10
    Posted: May/20/2018 at 9:41pm

Bought a 401 with a 727 transmission. If I’m going to a T-10 transmission will I need to machine the crank to accommodate the T-10 ?

If I’m going from a 401 with a 4 speed T-10 to automatic will I need to machine the crank??
1970 AMX 401 4 speed BBG
1972 Gremlin X 401 4 speed
1973 Gremlin X 304 4 speed
1973 Amx Pierre Cardin A/C 401 Auto
Back to Top
purple72Gremlin View Drop Down
AMC Addicted
AMC Addicted
Avatar
Charter Member

Joined: Jul/01/2007
Location: Illinois
Status: Offline
Points: 16591
Post Options Post Options   Thanks (0) Thanks(0)   Quote purple72Gremlin Quote  Post ReplyReply Direct Link To This Post Posted: May/20/2018 at 9:45pm
No. Just get the correct flywheel.
Back to Top
AMX View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Oct/10/2011
Location: Toronto,Ontario
Status: Offline
Points: 116
Post Options Post Options   Thanks (0) Thanks(0)   Quote AMX Quote  Post ReplyReply Direct Link To This Post Posted: May/20/2018 at 9:54pm
Pilot bushing need to be installed?
1970 AMX 401 4 speed BBG
1972 Gremlin X 401 4 speed
1973 Gremlin X 304 4 speed
1973 Amx Pierre Cardin A/C 401 Auto
Back to Top
Trader View Drop Down
AMC Addicted
AMC Addicted


Joined: May/15/2018
Location: Ontario
Status: Offline
Points: 6755
Post Options Post Options   Thanks (0) Thanks(0)   Quote Trader Quote  Post ReplyReply Direct Link To This Post Posted: May/20/2018 at 10:31pm
Yes you need a pilot bushing.
Nominally 0.754"ID x 1.057"OD x 0.875" deep. The OD, being period manufacturing, may need to be a little larger - so you have to measure to get the 0.0005 to 0.0010" press fit. The ID can be 0.0752" if the dowels were spot on.
I know that this is not an off the shelf answer, but better safe then sorry.
Parts of the day mixed with parts of today don't always mesh.

Back to Top
Boris Badanov View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Dec/14/2013
Location: NH USA
Status: Offline
Points: 4209
Post Options Post Options   Thanks (0) Thanks(0)   Quote Boris Badanov Quote  Post ReplyReply Direct Link To This Post Posted: May/22/2018 at 11:35am
In My Experience Re-balance it. All late AMC V8s are externally balanced
and will shake VIOLENTLY if the wrong flywheel is used.

Did this on a 1970 390 with a supposedly correct flywheel.
I was forced to re-balance it. Kinda sucks but it
is a fact of life with AMC V8s.
Gremlin Dreams
Back to Top
Junk Tech View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Oct/14/2013
Location: Florida
Status: Offline
Points: 33
Post Options Post Options   Thanks (0) Thanks(0)   Quote Junk Tech Quote  Post ReplyReply Direct Link To This Post Posted: May/26/2018 at 12:24pm
You will like your t10!
I have a 79 Spirit with a 304. Despite being 'inches challenged', it had an auto trans. It would barely chirp the tires off the line in factory trim. I got pedals out of a Hornet, bought a Lakewood bell housing, and installed a Doug Nash five speed in the car.
... It went straight to three gear rubber!
JT
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.109 seconds.
All content of this site Copyright © 2018 TheAMCForum unless otherwise noted, all rights reserved.
PROBLEMS LOGGING IN or REGISTERING:
If you have problems logging in or registering, then please contact a Moderator or