Rear structure

[Waterloo]

(06-24-2019 )Hammerhead Wrote:  

(06-24-2019 )Waterloo Wrote:  No, the oil pan does not have to come out. If your clutch is looking good, two years old, depending on miles, I would leave alone. That new clutch is more than likely the cause of that rear structure leak. That rear structure is your transmission mount on a ProStar, there are no other attachments to the transmission, just that rear housing. The housing gets jostled around when a clutch is installed, and that upsets that seal, the reason it is best to do the rear structure when installing a clutch.

Up to you on dropping the oil pan, that is not a difficult job, and once off, the pump is right there. Two to three hour job at most in a shop. Me, say four hours with beer breaks. The oil pump, not the rear structure... ;-)

Sorry Waterloo, but this is incorrect.
In order to replace the rear crank main seal, the oil pan doesn't need to be dropped, however to replace the rear structure gasket, the pan does need to be dropped. The rear 6 bolts of the oil pan don't thread into the block, they thread into the rear structure, thus breaking the oil pan seal and requiring removal and replacement...

Here is my thread on doing this particular job...

Oh yeah, and unless own the tools and do the job yourself, and even then only if you're into self cruel & unusual punishment, ALWAYS change the clutch! The cost of the clutch is half the cost of the labour for the job. As Rawze says "That's tripping over dollars to save dimes".

Thank you for the correction. I thought it was separate, but, I have never done one. What the real shame is here, is that these shops know that when that transmission comes off, that rear structure is almost 100% guaranteed to leak when that truck leaves the shop. I swear they do this on purpose. Everyone I know that has had clutch work and not done the rear structure seal is back in the shop in short order to have it done. Criminal.