From the way you type this out, it sounds like you haven't used new stock mounts or poly mounts. I had Kirks inserts on my old street car that I sold. I loved them. Shifts were alot more firm as well as initial acceleration. As is known, the only drawback was the extra vibrations but the car was loud anyways so it didn't really bother me.Inferno said:Lol. Everyone always seems so gun-ho about upgrading to polyurethane mounts, but do you guys realize that the rubber mounts you have now are over 20 years old. Just replacing all of your mounts with new oem ones will probably feel like a world of difference, while also allowing some more movement compared to the polyurethane mounts. Making them as stiff as you can isn't always the best route, I would think some movement is good.
YellowJacket said:Funny story:
I got inserts from Kirk for my 85.
Took them to my firestone and asked them to pop them on there when I was having other work done.
When I went to pick up the car, the tech had put one of the mounts in the front but the back mount on the early 85, have a different config, and Kirk had given me the later insert.
The tech figured it must go on the side so he crammed it in the side passenger mount instead.
When I picked the 2 ,up he was telling me what a pain that side mount was to put in and he had to shave it a bit (it still isnt totally flush) but he got it. I said "What side mount?"
When I called Kirk, and told him the back wouldnt fit, he said, Oh man, you have the 85 I forgot... and when I told him that I now got one side and one front... he happened to have an entire drivers side mount with insert from his prototyping he offered me.
so I picked up a mount he had for the drivers side which had an insert in it and also got the proper back mount and got those put in as well.
So end of the story is that I have kirks inserts on all four of my mounts as you mentioned. Its like a rock and the engine doesnt move when I throttle it. It does have some extra noise inside cabin- especially at around 3300-3800 RPM but its not a family car, anyway. :smile:
I am afraid I wont be much help there right now. I got the car in August. Its not my DD. It also has spent a lot of time in the garage undergoing its transformation since it was neglected. I would have to look at my registration papers, but I dont think its had more than 600 miles put on it since I got it... definitely under 1000. And I probably put the mounts on in September-ish. Now that its cold and rainy, and the tires are bald, it sits in the garage mostly and I have only driven it a few times to the store in the last 30 days.mcm95403 said:OK, so the next important questiosn - how long have they been on (time & miles) and have you had any problems with the front mount plate tearing?
Mine couldn't have been more than about 8000 miles. My right mount failed too (the bolt was missing, one stud was missing a nut, and the other one sheared off). I'm sure the failure was related, but I don't know which happened first or if either were related to the polyurethane inserts.mcm95403 said:OK, so the next important questiosn - how long have they been on (time & miles) and have you had any problems with the front mount plate tearing?
I know Kirk's inserts make great improvements and feel awesome, but has anyone compared them how to brand new oem rubber mounts feel? No, I've never actually done the comparison myself, but I've always been curious as to how much difference there really would be.javajoe79 said:From the way you type this out, it sounds like you haven't used new stock mounts or poly mounts. I had Kirks inserts on my old street car that I sold. I loved them. Shifts were alot more firm as well as initial acceleration. As is known, the only drawback was the extra vibrations but the car was loud anyways so it didn't really bother me.
I figured, I'm only using it to get to work (2 minutes away) since I let my folks borrow my backup car and have the new mount coming in Monday. :thumbupbentheswift said:Driving like this could quite certainly cause the front mount to fail...