# RB20DET - Rear Main Seal and Rocker...

**URL:** <https://forums.speedlife.net/t/rb20det-rear-main-seal-and-rocker/123221>\
**Category:** Classifieds\
**Created:** [April 4, 2009, 8:18am UTC](https://forums.speedlife.net/t/rb20det-rear-main-seal-and-rocker/123221 "2009-04-04T08:18:17Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\
**Post date:** [April 6, 2009, 6:58am UTC](https://forums.speedlife.net/t/rb20det-rear-main-seal-and-rocker/123221/12 "2009-04-06T06:58:55Z")

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> [@Myspace Viruses?](https://forums.speedlife.net/t/myspace-viruses/21214/29):
>
> Seems like I am having no luck at all with this…☹
> 
> Is the rear main on the RB/20/25/26 all the same?
> 
> Valve cover gaskets the same?
> 
> I’m going to end up ordering a full rebuild kit off the net, which fuckin sucks. Need the car off the hoist

According to FAST the alternative #12279 85G00 its the same as the RB20/RB25/KA24E

While the other alternative # 12279 58S00 lists RB25/RB26/KA24DE

Hopefully you can find out if the KA24E or DE Main Seals will work. I know the KA and SR have the same Front Main Seal but the Rears are not shared between the two as the KA has a much larger Real Seal.

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