I think he is talking about the backing plate for the motore it is much larger than the rear main. look for somethin a little larger. there is a thread somewhere around here with pictures and stuff for the reaer main and oil pan gasket with great pics ill try to find it.

 

https://www.dieselbombers.com/24-val...main-seal.html

thats a great writeup. its for a 24 valve but its the exact same procedure

 

thats exactly what i was looking for! thanks bud

 

billy d, when you go in there check the crank journal for a groove. If you can feel one with your finger, put a repair sleeve on, most auto parts stores can get them. I put them on the front and rear, $8 for the front, $12 for the rear from orielly auto, and $62 for a natianal oil seal from orielly, or $110 for a rear seal and repair sleeve from cummins

 

you just bought one

 

My 1st Gen has always had a moist spot at the bottom of the bell housing, presumeably from the rear main seeping ever since I got it. That was alomst 50k miles and four years ago and it hasn't gotten any worse yet.

 

Yeah mine only seems to leak slightly more when its got a fresh oil change, and only fer the 1st day or so fer some reason. I'm going to wait it out, and see if it gets worse. Man I sure hope not!!

 

I just did mine yesterday.

I used the Napa seal. It's a Felpro, the same kit sold at Autozone, Advance Auto Parts and a billion other places. It's basically the same cost as the cummins, and probably works about the same.

Replacing the seal was cake, as I already had everything behind the crank out of the truck. I used my impact driver and screwed 3 screws in it and then used a prybar to pull the thing out. I didn't have a slide hammer like the FSM recommends.

Pulling everything behind it is the pain...I see people say they do it in a few hours, but my guess is those parts have been apart before. Mine hadn't been taken apart in 19 years and damn was it a pain to get apart!

Anyway, that's my 2 cents.

 

mine was so bad that the seal just fell apart and dropped into my hands!

 

hey does anyone know what happened to this write up? my engine is out, and im going to do the seal tomorrow when the parts come in, just looking for a little bit of info.
or does anyone have a cummins service manual link?