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which parts to save on these rear ends. |
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mstrcrftr
Supporter of TheAMCForum Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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Posted: Mar/31/2014 at 7:39pm |
i have two rear ends, one out of a 73 jav and one out of a 74 amx.. both had 304's in them.. i understand that there is ZERO market for these as an assy. so i am thinking of maybe stripping any good parts from them and then scrapping the housings. so other than the axles and backing plates, are there any other parts that i should save?
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purple72Gremlin
AMC Addicted Charter Member Joined: Jul/01/2007 Location: Illinois Status: Offline Points: 16591 |
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They are V8 rears, try selling them?
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mstrcrftr
Supporter of TheAMCForum Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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i tried that purple72. anyone that i spoke with said they were boat anchors.. non posi but i figured that someone some day may need an axle shaft..
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5368 |
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I completely under stand....I save the shims for the axles, pinions, axle assy with matching hub, rear covers, original bolts, yoke...all gear sets and ring gear bolts. I build a lot of rears, that is why I save these parts...but you are right not a lot of value. I would buy a set of 2.87 gears for "cheap" or trade for something you need....I can't find the NOS set I have stashed right now!!! ARG
Back in the day I could sell a "one legger", but the 8.8 Ford is so easy to swap no one wants to bother. I scrapped several coil spring rears a few years ago...just robbed the usable small parts....hate it but can't keep everything.
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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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mstrcrftr
Supporter of TheAMCForum Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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Ross, i am going to pick them up this weekend at storage. ill bring em back and tear em down.. i dont know much about amc rear ends. how will i know the gear ratio other than rotating?
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1970390amx
AMC Addicted Joined: Jul/11/2008 Location: colorado Status: Offline Points: 3311 |
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count the ring teeth and pinion teeth and divide. It should also be stamped om the gear set. keep the sets together.
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1970 390 4speed Bittersweet shadow mask AMX
1970 Amx missing most everything, or in a box |
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5368 |
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"Count teeth" You should find one of these: 11 Pinion Teeth mated to 39 Ring Gear Teeth = 3.54 Ratio 13 Pinion Teeth mated to 41 Ring Gear Teeth = 3.15 Ratio 15 Pinion Teeth mated to 43 Ring Gear Teeth = 2.87 Ratio 2.87 is most common behind one leg auto's from 70's AMC's It is impostanat to keep the ring gear with its mating pinion...they are set marked for "factory manufacturing tolerances". They are "etched" with a a Carbide Electric Pen number (done by hand) with a number like 23 for instance then another number like +3 or -5......that number is used in the calculations to set the pinion height. If you have a Factory TSM, that will show exactly what I am talking about. Ross
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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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WesternRed
AMC Addicted Joined: Aug/03/2010 Location: Australia Status: Offline Points: 5787 |
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I just put my Jav rear in the shop for a gear change, I would have loved to have a complete spare rear end to build up and put the original factory one away just in case I ever want to change back to stock. It's a lot easier to change the complete rear axle than it is to change the gears out.
Surely plenty of options to put an aftermarket locker in if you need to spin both wheels.
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