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T10 Identification Please |
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Airdrie AMX
AMC Nut Joined: Aug/08/2010 Location: Alberta, Canada Status: Offline Points: 329 |
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Not sure on the date codes, eddie stakes has some info on breaking down the numbers on his site. But it is the 2.23 close ratio trans which will bolt up to the 401.
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72 amx javelin 401 4spd
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mixed up
AMC Addicted Joined: Jun/16/2015 Location: Monroe mich Status: Offline Points: 2178 |
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if you look for parts for the t10 you find a t10 is a t10 gm & ford use the same components it comes down to gear ratio and case so a answer to the question is it don't matter what year but I will tell you this amc went to the close ratio just for the big torq engines if you have driven both tran you would know what I mean I have both trans and enjoy the wide ratio better in a drag race on the close ratio first gear is so close to second I did not use it
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69 amx 290 auto
65 220 290 4spd 80 ford fairmont |
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Bandana
AMC Nut Joined: Jul/26/2016 Location: NC Status: Offline Points: 473 |
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I don't like the tall first gear on the close ratio. I have a winding,steep, and long driveway and I pretty much have to go all the way down with the clutch pushed in and coming up is not for the faint at heart - much faster than I'd like just to keep from stalling out. Even around town cruising the tall first gear is a PITA. Now once it gets going the close ratio is nice.
My main interest in dating the transmission right now is to know what throw out bearing / retainer to get for it? I did some searching last night on the different codes and I'm thinking the "F 24, 69" is the date code but I found conflicting info on deciphering it. Seems the "F" indicates June not February. Edited by Bandana - Sep/14/2017 at 8:14am |
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6PakBee
Supporter of TheAMCForum Charter Member Joined: Jul/01/2007 Location: North Dakota Status: Offline Points: 5458 |
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Look at this topic http://theamcforum.com/forum/t10-bearing-retainer_topic57108.html . 1970 390amx measured both of them. As to the date code, it is A, B, C, ...(no I) corresponding to January, February, March, ... |
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Roger Gazur
1969 'B' Scheme SC/Rambler 1970 RWB 4-spd Machine 1970 Sonic Silver auto AMX All project cars. Forum Cockroach |
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5367 |
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Not to be a Debbie Downer here but are you saying you need to replace the Front bearing retainer? If so, either will fit the trans. Please consider this:
1. in the last 48 years of this transmissions existence the front bearing retainer may have been changed, going by the case date will only tell you what is supposed to be there, not necessarily what you have. 2. The pre 1970 model year cars had a larger bearing retainer, which in turn uses a larger bore throw out bearing, which in turn changes the ball stud height in the bell housing. The heavier/larger diameter bearing retainer is the most desirable to use, I have repaired several customer AMX/Javelins with broken "late" or small diameter bearing retainers. American Parts Depot sells new ones, with the larger diameter.....the only way to go.
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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 |
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Bandana
AMC Nut Joined: Jul/26/2016 Location: NC Status: Offline Points: 473 |
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Thanks for the link 6Pakbee. I see the OD/ID measurements there for the different years. If the retainer IDs are the same I'm assuming the input shafts are all the same diameter for the different years? If this is true I could simply buy a large diameter retainer (for $30 its kind of a no brainer at that point) and bearing to have the upgrade?
At this point of course I do not know what I have going on inside. I'll have to pull the transmission to see. |
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5367 |
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On all open driveshaft AMC's the front case is the exact same (except date code), the input shaft that extends past the front bearing retainer, mid plate and tail shaft housings are all identical also. Internals are a different story, but you can swap one for another, if you keep the proper front bearing retainer with the car it came from.
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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 |
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Bandana
AMC Nut Joined: Jul/26/2016 Location: NC Status: Offline Points: 473 |
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A bit confused - so let me ask.. If my transmission is in fact from 1969 and has the older style large OD cast retainer with corresponding larger ID bearing, can I swap to a smaller diameter retainer and bearing with no problems?
Reason I'm asking is that if in fact it has the old style cast retainer I think I may go to a new steel retainer and corresponding bearing just to get away from the cast (or if it turns out to be broke or damaged). I saw in the thread link that 6pakbee posted that the new steel retainers could be bought for around $30... |
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6PakBee
Supporter of TheAMCForum Charter Member Joined: Jul/01/2007 Location: North Dakota Status: Offline Points: 5458 |
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I wouldn't go with the smaller one. Just not reliable enough long term IMHO. Heed what 401matcoupe said about the stud height for the throwout bearing pivot. Ignoring this will lead to big time trouble with clutch action. As to the retainers, get hold of 70rebelgeezer, he makes a billet early style that is pure poetry in steel.
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Roger Gazur
1969 'B' Scheme SC/Rambler 1970 RWB 4-spd Machine 1970 Sonic Silver auto AMX All project cars. Forum Cockroach |
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Sonic Silver
Supporter of TheAMCForum Joined: Nov/23/2011 Location: East Tennessee Status: Offline Points: 7969 |
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I know that the Performance American Style book said to change to the bigger setup for durability, so I did about 30 years ago on one car. The other car has been hammered on for 25 years with the smaller setup with no problem.
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