Osirus9

iTrader: (10)

so, by searching I can't quite figure out what Diff mounts to buy.

when I search for delrin differential mounts, I find only stuff like this:

http://www.mmr-direct.com/

and this:

http://cgi.ebay.com/ebaymotors/Rx7-R...item1c1e767a71

my question is... is that all I need?
isn't there another mounting point on the diff?
do I need to get solid subframe mounts as well?

I have delrin engine and tranny mounts already, but I have to replace the diff mounts too now because the diff shakes violently sometimes because it's mounts are so much softer than the rest of the mounts.

sharingan 19

iTrader: (16)

Yes, those are what u need.
The diff has 3 connection points 1 front difff mount (which is poorly designed and highly stressed) and 2 rear difff mounts which you are looking to replace.

You should install a pinion snubber and those mounts. If the snubber properly preloaded, the mazda comp front difff mount isn't a requirement, although it never hurts.

Osirus9

iTrader: (10)

ah I see now. They just don't offer the front mount in delrin.

I just ordered the rear mounts and the pinion snubber from this thread:

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/how-pinion-snubber-install-867300/

no more clunking rear end! (hopefully)

sharingan 19

iTrader: (16)

You don't want a solid front mount! The mount needs to have some give, or it will rip off the mounting tabs on the sub frame.

Great, it well be like driving a while different car. Make sure u put enough preload on the snubber so that it is touching the diff while at rest.

LargeOrangeFont

iTrader: (7)

No it does not need to give. If you run a solid front diff mount you MUST run solid subframe mounts. With both mounts solid, you won't rip the tab off the subframe.

sharingan 19

iTrader: (16)

^^ correct.
Sorry I've just seen too many broken tabs from solid mounts, that my knee jerk reaction is "no" lol