MotorvateDIY Video: $20 Diff Bushing Fix

DarkJak

This is such an ingenious fix. Subscribed to your channel

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MotorvateDIY

Thank you for that! As you know, the 370z and G37 S are mechanically very similar.

Rusty

Nice temp fix. How long will it hold up? What about the front diff bushings? They need fixed too. They also allow play.

That rear sub-frame has a ton of movement.

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s2krazyyy

I am curious to see the improvement on the sub-frame movement with the Z1 sub-frame collars installed+this mod. My diff bushing is shot and I dont have the time or money right now to to replace them. I did however get some Z1 sub-frame collars for Christmas and installed them on Monday and definitely noticed the rear doesnt shake as much as it used to. Will be doing this mod sometime next week thanks again to the OP for the info!!

MotorvateDIY

When you say "shake" do you mean wheel hop under during a hard launch?

If possible, please post your results. I cam curious to see what you noticed.

s2krazyyy

Ive never really launched the car hard so I cant say if it improved wheel hop. But before the Z1 subframe collars I could really feel the rear end shake coming out of 1st gear from a stop, I assumed this was because my diff bushing is totally shot but after installing the subframe collars the rear end hardly shakes as much as before when coming out of 1st gear. Overall the car feels much more solid with the subframe collars especially when shifting at a high rpm the car just feels more buttoned down.

Zoren 370

Where you buy the subframe collars?

MotorvateDIY

Good question. I will produce a 6 month update video to see how it is or isn't holding up. I am just as curious.

In my opinion, the front diff bushing are fine and are working as designed. They have zero impact on how the car feels under acceleration.

Keep in mind, soft subframe bushings reduce broken CV joints by absorbing most of the drive line shock, plus I don't want any more road noise or vibration inside my G37. It is loud enough for an old guy like me