Speaking of Motor Mounts

SuperDave

I understand that the AMC mounts work without any mods on a stepdown. I also notice that AMC (1977 Jeep Cherokee for example) has two different mounts. The 2280 does not have the built in restraint. That would be the correct one to use according to all the stuff I have read. The second type has the built in safety restraint. Has anyone ever used them? It would seem like an improvement. The left front is always the one that comes apart causing all kinds of havoc. Just wondering????

dave s

For all stepdown use AMC mount. The NAPA number is 602-1161 or Sealed Power 270-2330. I have used them for years.

(late model mount fits all Javelin, Hornet, Gremlin etc. Nuts are not the same as original Hudson and are not interchangeable. New nuts must be obtained as thread is different (at least with NAPA) ,

nick s

Dave, not sure of the number off hand but I'm using the ones with the safety. I don't know how much good it will do, but there is no issues on installation other than making sure you buy the nuts for them I don't remember if they were 7/16-14 or 11mm regardless the orig are 7/16 fine thread

The pair I initially purchased were different from each other. One had a much heavier base and denser rubber than the other. They were packaged in matching boxes but the labels were printed differently perhaps a different supplier, or just a different run. I suspect that there is another nearly identical mount, perhaps even another AMC application that uses the lighter softer mount and that it was possibly a stock mix at the factory. Anyway I took the pair to a different location (just happens that I didn't buy the first in my town) handed the two to the guy behind the counter one in each hand and asked if he believed they were the same part he said no that the one was twice the weight. he pulled his stock on the part and they all matched the heavier.

nick s

btw when i was in the first store I was in a hurry and didn't want to mess with him too much, so I didn't bother telling the kid at the counter 54 Hudson when asked for the application, I just told him 77 AMC Gremlin - thinking it would be easy enough - He asked "Who made that?"

SuperDave

Thanks Dave & Nick. I butcherd the part number in my first post. I just went back and edited it. There is enough misinformation out there without me adding to it. The parts books show a 2280 that does not have the safety. otherwise it seems to be interchangeable throughout the AMC production with the 2330. The 2330 seems to be cheaper and safer also. Many years ago.I had a left front MM break when I dumped the clutch on my souped 51 Hornet. The throttle linkage went past center and locked in the wide open position AND the clutch fork pulled out! The clutch was engaged and the pedal went to the floor! A wild ride to say the least! I had the presence of mind to shut the ignition off. I don't do that anymore..But just this week I was driving a friends 51 Com 6 and noticed the gas pedal and shift linkgage was wobbeling upon clutch engagement.. Sure enough a busted left front mount. I like the safety restraint. now to find an available transmission mount for the std shift.

mars55

SuperDave wrote:

now to find an available transmission mount for the std shift.

Louis Backhus's Hudson swaps Manual lists the '61 - '64 Oldsmobile front motor mount has a replacement for the standard shift transmission mount. It is part number 2215. It looks like this mount is no longer available through your local auto parts store. However, these people ( Fusick Automotive Products) carry it on page 16 of their catalog.



http://www.fusick.com/catfile/Catalog%2019BC_Layout%201.pdf

faustmb

nick s wrote:

The pair I initially purchased were different from each other. One had a much heavier base and denser rubber than the other. They were packaged in matching boxes but the labels were printed differently perhaps a different supplier, or just a different run. I suspect that there is another nearly identical mount, perhaps even another AMC application that uses the lighter softer mount and that it was possibly a stock mix at the factory. Anyway I took the pair to a different location (just happens that I didn't buy the first in my town) handed the two to the guy behind the counter one in each hand and asked if he believed they were the same part he said no that the one was twice the weight. he pulled his stock on the part and they all matched the heavier.

I had the same experience as Nick, out of (3) identically boxed units I found two with similar rubber but different threads. One was metric and one inch. The third unit was 1/4" thicker and the rubber was different. They work well and the cost was good, but they look a little off with the different thread and stud lengths.



Matt

7XPacemaker

Do yourself a favor.. Install the transmission mount BEFORE you install the motor mounts! If you do it in the reverse fashion you will have an extremely rough time. I think that the AMC mount is much stiffer and doesn't allow the engine to move as much as the factory engine mounts did.

SuperDave

7XPacemaker wrote:

Do yourself a favor.. Install the transmission mount BEFORE you install the motor mounts! If you do it in the reverse fashion you will have an extremely rough time. I think that the AMC mount is much stiffer and doesn't allow the engine to move as much as the factory engine mounts did.

A good observation. Yes the AMC mounts appear to be a harder durometer. If I HAD my rear mount, I would replace it first.

Thanks,