CK5
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Newbie swapping 350s, need tips, advice, warnings!

Right. I'm not counting on the healing thing, though.

Any tips on the rear main replacement?
 
Perhaps it is only the "smile" gasket on the oil pan leaking,not the rear main itself..if your lucky..
I have slowed a few leaky rear main seals down to a bearable level by adding a pint of brake fluid to the motor oil on some of my old clunkers I had back in the day...went from losing a quart a day just driving to work and home 10 miles,to once a week after 250 miles on longer trips..basically the "stop leak" stuff is mainly the same as brake fluid at a higher price..

I actually did replace that "smile" gasket with a one piece $30 Felpro (which I will get to take off now, and probably replace.)
 
Of course it would be easiest to do this with the engine out of the truck, but if that is not an option then try this:

I know it sucks, but pull the distributor, disconnect engine and transmission mounts and lift the engine. This will give you more clearance on removing the oil pan. Remove the oil pump. Remove the rear main bearing cap. Remove seal from engine.....do not use anything that is metal to push out the old seal. If you have a helper, have them turn the crank while you push up on the old seal. Once the old seal is out, install new seal in engine and rear main bearing cap. Install bearing cap and torque to specs. Keep everything clean. You cannot clean these parts too much.


Hope this helps.
 
You know, after the "brake fluid" suggestion above, I think that I am going to try
AT-205 Re-Seal and cross my fingers....
 
FUNNY STORY... well the AT205 didnt work, so I parked it and did my homework and finally did the rear main repair today.

THE REAR MAIN SEAL WAS NOT EVEN THERE!!! EMPTY. NOTHING BUT AIR.
Installed the new gasket, and everything is groovy now that the hemorrhaging has stopped. My truck goes, and we live happily ever after.

(play credits music)
 
FUNNY STORY... well the AT205 didnt work, so I parked it and did my homework and finally did the rear main repair today.

THE REAR MAIN SEAL WAS NOT EVEN THERE!!! EMPTY. NOTHING BUT AIR.
Installed the new gasket, and everything is groovy now that the hemorrhaging has stopped. My truck goes, and we live happily ever after.

(play credits music)
I had a guy rebuild a transmission for me and it needed a new pump, so he bought one, well it didn't come with the o ring so he just slapped it in a gave me the trans.
I put it in and it leaked a lot so I pulled it out and opened up to find no O ring.
I asked why there was not one, he said it didn't come with one.
I can't understand professionals who make these mistakes.
I put one on and everything was fine.
Just 3 days wasted on r&r
 
That is why I do everything myself

I am with you there. Since I have had mechanics screw-up even the most simple job almost every time I have ever let one touch my truck, the odds are that they must screw up almost every job they do.

P.S. I installed that strut-rod you sold me a couple of weeks ago on my 1991 V3500 Crew Cab. I had to grind out a small 1/16" amount of metal from one of the bolt holes , in order for it to line up, but other than that it fit perfect.
 
I am with you there. Since I have had mechanics screw-up even the most simple job almost every time I have ever let one touch my truck, the odds are that they must screw up almost every job they do.

P.S. I installed that strut-rod you sold me a couple of weeks ago on my 1991 V3500 Crew Cab. I had to grind out a small 1/16" amount of metal from one of the bolt holes , in order for it to line up, but other than that it fit perfect.
I am glad it worked out.
 
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