Do I need a poly diff mount to go with poly SFBs?

[Gerta]

Simply - really? Why no tranny mounts poly? I have a 318is / M42 motor and have poly subframe bushings, diff mount, and tranny mounts w/ TME's. Everything else is new OEM rubber. Doesn't seem to harsh at all.

[SimplyDope]

75d is perfect for a street car IMO if you're looking for a bit more feel over OEM. I don't find it harsh at all. Running poly everywhere in the m42, including motor mounts. Just wouldn't do the tranny though.

[shiboujin]

I did. I don't remember the directions saying it needed it though.

[Wishno87]

Ahh okay. So those would in fact need to be lubricated correct?

[shiboujin]

I have the poly akg ones. I dont' think anyone actually makes the delrin version.

[Wishno87]

AKG only has 75d polyurethane. Should I get that or look for 75d delrin?

[shiboujin]

IMO 75d is the only real upgrade for the trailing arms. Anything less will bind or be stock rubber. I'd love a spherical bearing upgrade to be within simple price range tho.

[FredK]

I've run an entirely AKG 75D rear end for 35,000 miles over the past 2 years. It isn't harsh.

75D transmission mounts, however, are ridiculous.

[nando]

I wouldn't think so, since the NVH from the TA's will still have to go through the subframe.

[Wishno87]

So if im already going 80A SFBs and MZ3 diff bushing then delrin TABs wont make it much worse?

[LJ851]

Where is the best place to find the delrin TABs? On turner they are 100$

I also already have treehouse cabs and ground controls with the race camber plates. Since I already have no rubber up front how much harsher can it actually get?

A lot. You feel NVH from the rear a lot more than you do from the front.

This is true. Your subframe isolates your differential,etc. from the chassis and that sucker makes a lot of NVH.

[shiboujin]

I forget where I got my 75d trailing arm bushings. I think I got everything from akg.

[nrubenstein]

Where is the best place to find the delrin TABs? On turner they are 100$

I also already have treehouse cabs and ground controls with the race camber plates. Since I already have no rubber up front how much harsher can it actually get?

A lot. You feel NVH from the rear a lot more than you do from the front.

[Wishno87]

Turns(no pun intended) out the turner ones are urethane and IE doesn't sell delrin tabs either.

[Wishno87]

Where is the best place to find the delrin TABs? On turner they are 100$

I also already have treehouse cabs and ground controls with the race camber plates. Since I already have no rubber up front how much harsher can it actually get?