Diff bushing options...

[Bubba]

I'm using a J30 diff in my car at the moment, which I'm sure is similar to others.

My question is, what options are available for the bushings in the ears of the casing?
Are they the same for 240sx, Z32, and J30? I don't want to go solid just yet if I can find a different option since this is my DD also.

[Matt93SE]

I've got one of each diff housing in the garage and they all use the same bushings. I run ES bushings in mine. pretty easy to install and cheap.

[hai1206vn]

I use z32 ES version. Very cheap.

You could go solid too. The s13 has no diff bushing at all and it's fine.

[Bubba]

Thanks guys. I'm in the air between the ES and SPL ones then I guess.
I'd like to see if I can make a locking collar to hold me over for a week or so though. I already bought myself Christmas presents. Need to get everyone else hooked up before I buy anything else for me.

[Bubba]

With either option I'll still be dropping the diff and beating the cup out that the stock rubber was in, right?

I may just see if my sugamomma will buy me the solid set, that way I just do it once and call it a day for this diff.

[Tower240sx]

go solid as there is no isolation at the rear so it's not intended to be isolated at the front either

[Bubba]

Cool. After this mod and last weeks S14 subframe swap, all I can change in my suspension now would be adjustable LCA's and go from a shock/spring to a coilover setup.

[djsilver]

Cool. After this mod and last weeks S14 subframe swap, all I can change in my suspension now would be adjustable LCA's and go from a shock/spring to a coilover setup.

If you're using an S14 subframe and a J30 diff, you either need bushings for both the ears and the cover or both solid. The S14 diff cover mounting holes have bushings in them so there's no problem using bushings in the ears. If you lock one part down you need to lock both parts down. If you lock the diff ears and let the diff cover float you may eventually snap the ears. If you lock the cover and let the ears float you'll flex the subframe at the diff cover mounting location.

[e1_griego]

Does anyone know the ES part numbers for the bushings that just go in the subframe -- not on the ears, but where the back cover's studs go into the subframe?

[Matt93SE]

http://www.energysuspensionparts.com/proddetail.asp?prod=7.1108#

looks like it has 4178 stamped on the side in those photos. hard to read though.

[KA240SX808]

I use z32 ES version. Very cheap.

You could go solid too. The s13 has no diff bushing at all and it's fine.

Whats the diff. between the Z32's and the S14's? I see there listed as 2 diff. part numbers but look pretty identical.

[Bubba]

If you're using an S14 subframe and a J30 diff, you either need bushings for both the ears and the cover or both solid. The S14 diff cover mounting holes have bushings in them so there's no problem using bushings in the ears. If you lock one part down you need to lock both parts down. If you lock the diff ears and let the diff cover float you may eventually snap the ears. If you lock the cover and let the ears float you'll flex the subframe at the diff cover mounting location.

I totally failed to take that into account. I already had Kuah ship it out also. LoL

How much can it take before something breaks? I just need my DD back for the moment is all. I'm N/A with no power adders. I'll have him send the other half out either way.

[Matt93SE]

You'll be fine for a while- just don't do a bunch of hard launches or anything on it and you should be okay. the key word in this case is fatigue, not kablooey.

[Bubba]

K. I only drive hard in corners if at all. Launches are not my cars forte'

I'll baby it until I can get the other half of the bushing kit sent to me.

[e1_griego]

http://www.energysuspensionparts.com...p?prod=7.1108#

looks like it has 4178 stamped on the side in those photos. hard to read though.

Oh, well for $25 I'll just buy the whole set.

I figured it was more.