Originally Posted by
95b14 
I promise you that is your problem. I had exactly 1 bolt missing on the rear mount. I could see the shifter move when I would hit the gas. I ended up breaking by solid front mount in half and destroying the trans case around where the diff is. DO NOT ignore this bolt any longer. Its only a matter of time before you end up stranded. Luckily, I was in the heart of the ghetto when it happened to me.
Guess who went to Nissan the next day and bought all new bolts for that mount. Luckily I had a spare case laying around to swap my stacks into or it would've cost me quite a bit of money.
Going down to the dealer to buy all missing bolts, I sure hope this is the cause, I'd rather have everything bolted up the right way to have a piece of mind anyhow. Ok so what about that pad that sits on the cross member though does this play into this as a factor at all?
Originally Posted by
Crvett69 it can also be loose control arm bushings, worn ball joints, loose axle to engine center bearing. any of those can cause movement in the drivetrain and load/unload under different engine conditions. engine won't move but it will feel like it does if wheel is moving forward or back I will recheck all of those areas but everything was torqued to spec when I installed the master bushing kit.
Originally Posted by
classicaddict You have to understand that you have removed any give in the engine/trans mounting system. what you are feeling is drive line movement amplified, any movement the old mount absorbed in the past is now being transferred threw the entire car. its normal, have you ever driven a car with solid mounts? learn how to rev match while down shifting and this will help allot. If you are still convinced this is not normal........... its not you engine mounts........its impossible for it to be your mounts. i would starting checking your engine for misfires. I was expecting the extra driveline vibrations I have had polymounts in my B14 in the past they have worked superb I could not ask for more, Just in the B13 I own now they are working like shit, but hey we shall see, The rev matching has been working out for me though alot easier on the clutch and drive train all together. Especially with this six puck.
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The person I bouught it from left out some bolts and replaced some with SAE instead of metric. 
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