TheAMCForum.com Homepage
Forum Home Forum Home > The Garage > Transmission & Drivetrain
  New Posts New Posts RSS Feed - 73 amc javelin. gonna blow up a rear end and trans
  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.

73 amc javelin. gonna blow up a rear end and trans

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

Joined: Apr/21/2012
Location: california
Status: Offline
Points: 172
Post Options Post Options   Thanks (0) Thanks(0)   Quote streettechmiata Quote  Post ReplyReply Direct Link To This Post Topic: 73 amc javelin. gonna blow up a rear end and trans
    Posted: Apr/21/2012 at 5:07pm
So I'm new to the forum. I'm young and Dnt make a lot of money so my build is definatly a budget build. I have a 73 javelin. 304 with the standard 3 speed with what I believe to be a t14. I'm building a 360 that's bored .030 over with forged rods and pistons. 10.5 to one compression. I plan on also doing a low boost turbo blow through set up. From what I have read the t14 does not seem like a very strong trans and I Dnt know very much about the Amc rear ends. So I'm thinking they probably will not last very long. I suppose my question is how much power do you guys think a t14 will handle before it goes poof. And same question on the rear end. I plan on some drag radials in the rear to get a little more hook up. Also any suggestions on a buyer minded clutch set up
Back to Top
abndanger View Drop Down
AMC Nut
AMC Nut
Avatar

Joined: Nov/08/2009
Location: Grand Rapids
Status: Offline
Points: 434
Post Options Post Options   Thanks (0) Thanks(0)   Quote abndanger Quote  Post ReplyReply Direct Link To This Post Posted: Apr/21/2012 at 5:35pm
I suggest maybe getting T-10 trans and twin grip rear end. You will you will be supprised.
" LIVING THE AMX DREAM"
1973 AMX Javelin Pierre Cardin
1973 AMX Javelin Barnfind "Wifes"
Back to Top
FuzzFace2 View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Jul/05/2007
Location: Connecticut
Status: Offline
Points: 6373
Post Options Post Options   Thanks (0) Thanks(0)   Quote FuzzFace2 Quote  Post ReplyReply Direct Link To This Post Posted: Apr/21/2012 at 6:04pm
Yea look for an AMC T10 or spend some $$ for a stronger 5 sp trany than the T5 if you are hitting the drag track as I dont think a WC T5 would last long either.
As for the rear what you going to use to replace the stock AMC model 20  8 7/8 ring gear with?
Replace the the axles with Mosers, brace the spring mounts, should do that with any rear used, and a good twin grip unit and you are good to go with that rear.
BTW I am using the AMC 20 in my 70 Javelin drag car alxes, Detroit locker, 4.56 gear, braced mounts & Cal track bars all pushed by a junk yard built 360/TH400.
Dave ----
75 GremlinX v8

76 GremlinX i6 (sons)

70 Javelin SST 390/4sp (360/5sp now)

70 Javelin 1/4 Drag car 360/auto
Back to Top
streettechmiata View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Apr/21/2012
Location: california
Status: Offline
Points: 172
Post Options Post Options   Thanks (0) Thanks(0)   Quote streettechmiata Quote  Post ReplyReply Direct Link To This Post Posted: Apr/21/2012 at 6:43pm
Would a t10 bolt right up to my bellhousing? And would all the clutch stuff be the same? And I was thinking I would try to find a Ford 9inch and swap it in if the old rear end wouldn't handle the power. Or are the Amc diffs pretty beefy with some better shafts and everything. I'm a little more from the rock crawlig world and I have seen people put a lot of money into rear ends and it all ends up a waste cause they are never happy with it and breaks parts every trip. Not sure what kind of ring gear I want, guess it would depend on the trans of choice I go with
Back to Top
FuzzFace2 View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Jul/05/2007
Location: Connecticut
Status: Offline
Points: 6373
Post Options Post Options   Thanks (0) Thanks(0)   Quote FuzzFace2 Quote  Post ReplyReply Direct Link To This Post Posted: Apr/22/2012 at 2:01pm
I dont know how deep the bell housing you have now is or if the T10 will bolt to it, maybe someone knows? I do know the T10 housing is deeper than a 6cly bell that is needed to bolt up a T5. I only can go by T10 & T5 as I went from a T10 to a T5 on my street Javelin. Drag Javelin runs an auto & Mosers in the AMC 20 rear.
 
The weak link of the AMC model 20 rear end that is in your car is the 2 piece axles. Last I heard it was a little over $450 and a week for Moser axles. If you want add a carrier & gears and you are done. With a ring gear of 8 -7/8” it is a little smaller than the Ford 9” and bigger than the Mopar 8-3/4”.

I have not heard of any one blowing up a model 20 rear but have seen bent spring mounts if not braced and using sticky tires. I do hear you about putting money into something and still have junk, the 20 is not that way once the axles are replaced.

Dave ----

75 GremlinX v8

76 GremlinX i6 (sons)

70 Javelin SST 390/4sp (360/5sp now)

70 Javelin 1/4 Drag car 360/auto
Back to Top
streettechmiata View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Apr/21/2012
Location: california
Status: Offline
Points: 172
Post Options Post Options   Thanks (0) Thanks(0)   Quote streettechmiata Quote  Post ReplyReply Direct Link To This Post Posted: Apr/22/2012 at 10:28pm
I have never heard of two piece axles. How are they two pieces?
Back to Top
bcsideshow View Drop Down
AMC Nut
AMC Nut
Avatar

Joined: May/19/2010
Location: Kenosha
Status: Offline
Points: 347
Post Options Post Options   Thanks (0) Thanks(0)   Quote bcsideshow Quote  Post ReplyReply Direct Link To This Post Posted: Apr/22/2012 at 10:36pm
The hub is pressed onto the shaft.  There is a key way and a big nut keeping it together.  With enough power and traction you can spin the axle in the hub
1970 AMX 390 Auto driver/project

1969 AMX 390 4SPD 22K mile project

1969 AMX 390 Auto Project

1969 Javelin 390 AUTO SST Project

1970 Javelin 360 Auto Donohue Project car

1997 Cherokee 2" lift &nb
Back to Top
streettechmiata View Drop Down
AMC Apprentice
AMC Apprentice
Avatar

Joined: Apr/21/2012
Location: california
Status: Offline
Points: 172
Post Options Post Options   Thanks (0) Thanks(0)   Quote streettechmiata Quote  Post ReplyReply Direct Link To This Post Posted: Apr/22/2012 at 10:47pm
Wow that really sucks. So you can't just weld it and make it a one piece
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.375 seconds.
All content of this site Copyright © 2012 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