"The rear isoclamp assembly, another big (and relatively cheap) improvement," I've never been able to figure how putting squishy rubber bits between the spring and the axle was a good idea for handling. The car would be quieter, but I can't see how it would help otherwise. One day I'll try a car without those bits in and see what happens. Ken Quoting Marc Montoni <Freedom@xxxxxxxx>: > > Steve Avery <stoverstevens@xxxxxxxxx> said: > > >Don't know about part numbers but gather settings changed between factory > >bias ply cars vs. later ones radial ones. The '79 AMX and later Spirit GT > >definitely handle better and with better feel than my '70 AMX even though > it > >has better than factory alignment and camber specs done to complement the > >wheels/ tires and offset, wider rims and tires, all new bushes and > >reinforced suspension arms. > > > Yes, there is no doubt the Spirit AMX and GT handled much better than the > AMX. Unusual that this is true even though the early AMX body was stiffer > than the Spirit body. > > Not having any money to do any real major engineering, AMC diddled with > details until they got things very "right". The major suspension components > were mostly the same -- ball joints, bushings, control arms, etc. The 79 AMX > sway bars were a huge -- and fairly cheap -- improvement. The rear isoclamp > assembly, another big (and relatively cheap) improvement, was a Ford-designed > unit that was similar to the pieces developed for the Muskrat. > > > >In addition, the factory GT or SAMX ( Spirit AMX ) have a factory rear roll > >bar and a much fatter front bar than my '70. > > > Yep. I often wondered why AMC didn't develop those mondo fat sway bars for > the original AMX. The benefits to handling were already well-known by the > mid-60's. One of the pieces I always look for when in junkyards are the > super-huge front and rear sway bars AMC put on the Ambassador (and later > Matador). I have them on my 71 Ambassador (they were original equipment on > that car), my two 69 Ambassadors's, and my 77 Matador. You would be amazed > at the difference. I used to go looking for twisty back roads to run my 71 > on, it was such a joy to drive. Instant steering response, easy to 'drift', > easy to throw into oversteer if you wanted to, etc. > > > >There are changes that can improve upon the factory offering. Ride height > >about an inch lower and front/rear spring specs more in line with what the > >B.F. Goodrich Spirit AMX's used along with using poly supported stock > bars, > >or better, a set from Larry Mitchell plus a set of KYB's or Koni's, new > >suspension bushes, new isolators for the rear spring leafs as well as the > >perches, a better steering box or the box built by a performance house, > etc. > >really ties it all together. The ride height change really needs to > >accompany the spring change to make a real noticeable difference. > > > I've been wondering if Mitchell's bar set has seen any redevelopment since > Mitchell's heyday back in the 80's. Some of his sway bar kits way back then > were Firebird parts. > > Otherwise, I agree on all of the above. Individual components with more > modern technology / materials (better bushings, etc) makes the old stuff we > drive work one heck of a lot better. > > BTW, Steve, do you have the suspension specs for the BFG Spirit AMX's? > > > > ------------------------------------------------------------------------ > MARC MONTONI > Harrisonburg VA > http://FreeVirginia.blogspot.com/ > Freedom. Responsibility. www.LP.org > Cu vi parolas Esperanton? > I'd rather push a Rambler than drive a Toyota. > Visit www.AMCRC.com or www.AMONational.com . > http://RichmondRambler.tripod.com/ > http://Hasdrubal.tripod.com/Index.htm > ------------------------------------------------------------------------ > This work is licensed under a Creative Commons > Attribution-Noncommercial-Share Alike 3.0 United States License. > > > _______________________________________________ > AMC-list mailing list > AMC-list@xxxxxxxxxxxxxxxxx > http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com > _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com