If it's got a 232 or 258 I-6, an AMC v-8 will bolt to the existing trans, you would need to change the front crossmember to a V-8 part.
If it's a 199, the trans has a different bolt pattern, so you'd need to change that too.
The trunnion suspension isn't that bad, and parts to rebuild them are available. Sway bar kits are also out there. There was someone on www.amcforums.com that was prototyping a replacement strut type front suspension for the AMX/Javelin. It might fit the Rambler too since the suspension is nearly identical.
Here's the link. http://www.amcforums.com/cgi-bin/yabb2/YaBB.pl?num=1144023433
Bob
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