Parts are available for the Model 20 thanks to the Jeep guys. You can buy lockers, gears and solid axles,all you have to do is look at a current issue of any 4wd magazine and you will find lots of vendors for that rear. The 343 is a good running engine that makes good power but you are limited in transmission choices unless you buy an adapter to fit a late model automatic to it or use a manual trans. They have about 10:1 compression in 4bbl form and make 280hp. The 2bbl compression is just a little lower. IIRC The main drawbacks to using a 343 is the transmission problem stated above and the lack of the better flowing late model Dog-Leg heads If the price is right, it would make a good choice for your Gremlin. (Just ask Bart) (If you are nice maybe he will tell you how he bolted his to a late model trans without an adapter) Brian ----- Original Message ----- From: cyebo@xxxx To: gremlintime@xxxxxxxxxxx Sent: Monday, January 15, 2001 1:27 PM Subject: [gremlintime] rear end question? Hey guys. I just found out that the Gremlin V8 rear end is a model #20 and the 4 and 6 bangers are model #15. I have been told that the #20 came out with 4.10 and other assorted gears as well as a limited slip. Whats the deal with em? Is this true or not? And can you still buy posi units and various gears for them? I want to buy one to swap out my weaker unit, so the width will fit right under my car. Also, to everyones delight I am going through the ads to try to find me a pure 100% AMC motor. now that I found some ads and different websites I seem to be running into a lot for sale. Can anyone tell me what a 343 motor is? What did it comr from? how good is it? Thanks all, GREMLINMAN eGroups Sponsor Community email addresses: Post message: gremlintime@xxxxxxxxxxx Subscribe: gremlintime-subscribe@xxxxxxxxxxx Unsubscribe: gremlintime-unsubscribe@xxxxxxxxxxx List owner: gremlintime-owner@xxxxxxxxxxx Shortcut URL to this page: http://www.onelist.com/community/gremlintime Gremlintime(Home of the AMC Gremlin on the WWW): http://www.geocities.com/gremlintime