RTV Gasket Sealer on Intake Manifold Gaskets?

[e30sh]

Mark the driveshaft / output shaft or tire and rotate. Should be ~ 3 3/4's or a little over 4 turns to determine your gear ratio.

[jeffnhiscars]

make sure you have the washers and spring in the right configuration on the bitch tube

[redlightpete]

Regarding your 3.73, when I refreshed mine, the pinion bearings were completely worn out and loud. The other bearings were ok. Might want to at least inspect them while you’re in there.

[zaq123]

Regarding your 3.73, when I refreshed mine, the pinion bearings were completely worn out and loud. The other bearings were ok. Might want to at least inspect them while you’re in there.

was it a pain to set gear lash after you replaced the bearing? I have my diff out right now. Replacing output seals but hesitating to mess with the input flange. Did it once on the truck diff and was a major PITA: shimming, crush sleeve, paint gears and check, disassemble...new shims, assemble paint......check

[redlightpete]

I measured everything carefully, and the replacement bearings were the same thickness, so I didn’t end up changing any shims. I just set the preload with a new crush sleeve and checked it with paint.
If you just disassemble the pinion to check the bearings, you’d only need to redo the crush sleeve and preload.

[LowR3V'in]

my throttle body flange warped so i had to file it down flat again.
Didn't try to polishing it out, just filed it flat and i used gasgacinch. very good sealant.

normally i just copper spray every single paper gasket though. even the metal exhaust gaskets.
head gasket. metal turbo gasket. even if ur engine is stock another level of 'just in case' is good.

[Echo30V]

I know how to test for friction plate issues but how can I tell if I need to refresh pinion bearings etc. I'm buying a used 3.73 to install but want to refresh. How can I tell if pinion bearings, crush sleeve etc need to be replaced.

[jeffnhiscars]

I'm still trying to figure out how one warps a throttle body

[LowR3V'in]

^a different flange welded on it. got too hot.

[jeffnhiscars]

^a different flange welded on it. got too hot.

Ahh...well...that would do it :-)

[15Michaeljoseph]

my throttle body flange warped so i had to file it down flat again.
Didn't try to polishing it out, just filed it flat and i used gasgacinch. very good sealant.

normally i just copper spray every single paper gasket though. even the metal exhaust gaskets.
head gasket. metal turbo gasket. even if ur engine is stock another level of 'just in case' is good.

Oops, forgot that in my little summary hahah, copper spray on the head gasket makes for successful sealing!

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[Echo30V]

So I picked up the 3.73 LSD Diff. Ordered all the seals and am still up in the air about replacing the friction plates. What do you guys suggest? Is there a good aftermarket friction plate brand instead of BMW?

[e30davie]

Id ring a few differential shops and see what they suggest. Might be a standard size etc.