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Engine cradle/crossmember

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Steve_P View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve_P Quote  Post ReplyReply Direct Link To This Post Posted: Jun/11/2019 at 7:13am
The fastener layout changed on the later Javelin crossmembers. They will interchange if you use the correct fasteners. The second gen crossmember only uses countersink style fasteners on one side of the car vs both sides for the first gen.

The lower control arm did change in 1970 but the mounting into the crossmember is the same.

AMC set the part numbers, not the suppliers.
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FritzF3 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote FritzF3 Quote  Post ReplyReply Direct Link To This Post Posted: Jun/11/2019 at 7:23am
14/64 is the same as 7/32. Did you mean 15/64?
Fritz
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amc wannabe Quote  Post ReplyReply Direct Link To This Post Posted: Jun/11/2019 at 1:31pm
Steve, when does that change occur? Would my 1970 straight six fall into the early or late category?
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401MATCOUPE View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 401MATCOUPE Quote  Post ReplyReply Direct Link To This Post Posted: Jun/11/2019 at 2:36pm
The attachment fastener change happened in 1971.....

68-70 uses 2 bolts with a taper under the head, the same bolts used to hold many tractor wheels in place and 2 studs with lugnuts...taper side towards crossmember.

71 up used the two studs with lugnuts and 2 each 1/2"- 20 bolts with thick flat washer under head.

All 68=70 V-8 Javelin and AMX Crossmembers will interchange with no issues on control arms or engine mounting.

If you need one PM me I have several used from Javelin.
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
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farna View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote farna Quote  Post ReplyReply Direct Link To This Post Posted: Jun/12/2019 at 6:59am
Yes Fitz... meant 15/64!!

AMC set the part numbers, but they usually changed part numbers when they changed vendors on many parts, or when vendors made a change so they could tell where the part came from in case of issues later.
Frank Swygert
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amc wannabe Quote  Post ReplyReply Direct Link To This Post Posted: Jun/13/2019 at 7:02am
401matcoupe, I sent you a message. Looks like your relatively close to me? Might be able to snag it in the coming weeks if your free and not wanting it’s weight in gold haha
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401MATCOUPE View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 401MATCOUPE Quote  Post ReplyReply Direct Link To This Post Posted: Jun/13/2019 at 7:07pm
Originally posted by Amc wannabe Amc wannabe wrote:

401matcoupe, I sent you a message. Looks like your relatively close to me? Might be able to snag it in the coming weeks if your free and not wanting it’s weight in gold haha

Plenty of parts here after parting out 100's of AMC's!!  Prices are always reasonable, sent you PM and my number.
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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