TheAMCForum.com Homepage
Forum Home Forum Home > The Garage > Transmission & Drivetrain
  New Posts New Posts RSS Feed - T10 Identification Please
  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.

T10 Identification Please

 Post Reply Post Reply Page  123 4>
Author
Message
IdahoSpud View Drop Down
AMC Nut
AMC Nut
Avatar

Joined: Feb/27/2015
Location: Idaho
Status: Offline
Points: 396
Post Options Post Options   Thanks (0) Thanks(0)   Quote IdahoSpud Quote  Post ReplyReply Direct Link To This Post Topic: T10 Identification Please
    Posted: Jun/18/2016 at 7:06pm
Can someone tell me please what transmission I have. I have been told three different gear ratios and would like to know for sure what this is.

The main case has the numbers; T10P-1B and below in small letters what appears to be P1968

The tail case has: T10P-7A  and in small letters under P 2168?

The Little tag attached to a bolt on the case reads: 3193964  & AS1-T104

I tried Identifying this on Planet Houston but it does not make sense to me.

Thanks in advance


Edited by IdahoSpud - Jun/18/2016 at 7:43pm
Moe

1973 AMX Pierre Cardin 360 / Auto
1970 Javelin 360 / Auto
1969 AMX BBB 390 / Auto
1980 Spirit 401 / Auto (to be)
Back to Top
ttrrogg View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Jul/21/2012
Location: torrington, ct
Status: Offline
Points: 197
Post Options Post Options   Thanks (0) Thanks(0)   Quote ttrrogg Quote  Post ReplyReply Direct Link To This Post Posted: Jun/18/2016 at 8:55pm
look on the input shaft there will be groves cut into it, 5 groves is 2:23 close ratio, 4 groves would be 2:43 wide ratio, 3 groves would be 2:64 ratio, the tag is only a series part number.
















1970 Big Bad Blue javelin sst
Back to Top
IdahoSpud View Drop Down
AMC Nut
AMC Nut
Avatar

Joined: Feb/27/2015
Location: Idaho
Status: Offline
Points: 396
Post Options Post Options   Thanks (0) Thanks(0)   Quote IdahoSpud Quote  Post ReplyReply Direct Link To This Post Posted: Jun/18/2016 at 9:17pm
Thanks Ed. I thought the numbers dictated the gear ration and whether it was a close ratio or a wide ratio? Is there a close ratio and wide ratio in both of those gear ratios?
Moe

1973 AMX Pierre Cardin 360 / Auto
1970 Javelin 360 / Auto
1969 AMX BBB 390 / Auto
1980 Spirit 401 / Auto (to be)
Back to Top
6PakBee View Drop Down
AMC Addicted
AMC Addicted
Avatar
Charter Member

Joined: Jul/01/2007
Location: North Dakota
Status: Offline
Points: 3364
Post Options Post Options   Thanks (0) Thanks(0)   Quote 6PakBee Quote  Post ReplyReply Direct Link To This Post Posted: Jun/18/2016 at 9:27pm
Mel,

The only absolutely sure way to tell the first gear ratio is to mark the input and output shafts, put it in first gear, and turn the input shaft until you have one revolution on the output shaft.  I'll clean the end of the output shaft and use a piece of tape so I can keep track of both the front and rear end from the front (input).

According to "Performance American Style" there are two gear ratios for the 2.64 and 2.43 transmissions, a "P' series 2.43 and a "T" series 2.64 which are listed as production.  Then there is an "S" series 2.43 and a "W" series 2.64 which are listed as aftermarket.  So if this publication is correct, there are two gear ratios for these two first gear ratios.


Edited by 6PakBee - Jun/18/2016 at 9:43pm
Roger Gazur
1969 'B' Scheme SC/Rambler
1970 RWB 4-spd Machine
1970 Sonic Silver auto AMX

All project cars.

Back to Top
IdahoSpud View Drop Down
AMC Nut
AMC Nut
Avatar

Joined: Feb/27/2015
Location: Idaho
Status: Offline
Points: 396
Post Options Post Options   Thanks (0) Thanks(0)   Quote IdahoSpud Quote  Post ReplyReply Direct Link To This Post Posted: Jun/18/2016 at 10:16pm
Thanks Roger. I will give it a try. Sounds confusing on stock and after market gears.

Hope all is well up north.
Moe

1973 AMX Pierre Cardin 360 / Auto
1970 Javelin 360 / Auto
1969 AMX BBB 390 / Auto
1980 Spirit 401 / Auto (to be)
Back to Top
ttrrogg View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Jul/21/2012
Location: torrington, ct
Status: Offline
Points: 197
Post Options Post Options   Thanks (0) Thanks(0)   Quote ttrrogg Quote  Post ReplyReply Direct Link To This Post Posted: Jun/19/2016 at 6:24am
after market the input shaft will have only one grove on it
1970 Big Bad Blue javelin sst
Back to Top
401MATCOUPE View Drop Down
AMC Addicted
AMC Addicted


Joined: May/20/2010
Location: Salisbury, MD
Status: Offline
Points: 4599
Post Options Post Options   Thanks (0) Thanks(0)   Quote 401MATCOUPE Quote  Post ReplyReply Direct Link To This Post Posted: Jun/19/2016 at 6:33am
Moe....Do not go by the rings in the input shaft.....Borg Warner made a mistake at some point and made 2.23 input shaft with both 5 and 3 grooves, that can give you a false indication of the ratio,  Made this mistake myself and when I worked in  a Trans Shop in early 1980's, the owner warned me of this since he had a Service Letter from BW warning shops to count the teeth on the input shaft and before ordering a replacement.

But as Roger suggests above put in 1st gear and count the input rotations compared to 1 output turn.....there is 3 different factory gear ratios.  2.64 (rare), 2.43 (very rare) and 2.23 most common and used from mid 1968 thru 1974.  Yes, BW made other T-10 first gear ratio's, but they were 99.9% for other brands.  This is not hard.  
Don't worry about the after market gear markings or ratio's, your case dates indicate it would be highly unlikely you would run into these.


Edited by 401MATCOUPE - Jun/19/2016 at 3:55pm
Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar)
68X,GoPac,390,4sp,52A
69X,GoPac,390,4sp,64A
70X,GoPac,390,4sp,87A,8
70X,GoPac,390,4sp,BBO,8
70 Jav SST,390,AT,BSO
74MatX,401,AT,Prototype
74MatX,401,AT
Back to Top
6PakBee View Drop Down
AMC Addicted
AMC Addicted
Avatar
Charter Member

Joined: Jul/01/2007
Location: North Dakota
Status: Offline
Points: 3364
Post Options Post Options   Thanks (0) Thanks(0)   Quote 6PakBee Quote  Post ReplyReply Direct Link To This Post Posted: Jun/19/2016 at 7:03am
Originally posted by 401MATCOUPE 401MATCOUPE wrote:

....there is 3 different factory gear ratios.  2.64 (rare), 2.43 (very rare) and 2.23 most common and used from mid 1968 thru 1974.  ....


So true.  I've been looking for a input shaft for the 2.43 production transmission (21 tooth) and if they are out there, I can't find one.


Edited by 6PakBee - Jun/19/2016 at 7:08am
Roger Gazur
1969 'B' Scheme SC/Rambler
1970 RWB 4-spd Machine
1970 Sonic Silver auto AMX

All project cars.

Back to Top
purple72Gremlin View Drop Down
AMC Addicted
AMC Addicted
Avatar
Charter Member

Joined: Jul/01/2007
Location: Illinois
Status: Offline
Points: 14621
Post Options Post Options   Thanks (0) Thanks(0)   Quote purple72Gremlin Quote  Post ReplyReply Direct Link To This Post Posted: Jun/19/2016 at 1:13pm
Originally posted by 401MATCOUPE 401MATCOUPE wrote:

Moe....Do not go by the rings in the input shaft.....Borg Warner made a mistake at some point and made 2.23 input shaft with both 5 and 3 grooves, that can give you a false indication of the ratio,  Made this mistake myself and when I worked in  a Trans Shop in early 1980's, the owner warned me of this since he had a Service Letter from BW warning shops to count the teeth on the input shaft and before ordering a replacement.

But as Roger suggests above put in 1st gear and count the input rotations compared to 1 output turn.....there is 3 different factory gear ratios.  2.64 (rare), 2.43 (very rare) and 2.23 most common and used from mid 1968 thru 1974.  Yes, BW made other T-10 first gear ratio's, but they were 99.9% for other brands.  This is not hard.  
Don't worry about the after market gear markings or rations, your case dates indicate it would be highly unlikely you would run into these.
Ross is correct...
Back to Top
ttrrogg View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Jul/21/2012
Location: torrington, ct
Status: Offline
Points: 197
Post Options Post Options   Thanks (0) Thanks(0)   Quote ttrrogg Quote  Post ReplyReply Direct Link To This Post Posted: Jun/19/2016 at 8:11pm
Had 2:64 transmissions sold all of them. been coming across 2:43 and 2:23 transmissions now and then finding mostly at large swap meets most non AMC people have them and don't know what they go to and sell them cheap. The transmission parts are a little harder to find but some guys take the transmissions apart and can't put back together again and sell cheap again. Have 4 or 5 of each left may find more.
1970 Big Bad Blue javelin sst
Back to Top
 Post Reply Post Reply Page  123 4>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.063 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