SM465 Rear Seal
 

Has anyone replaced the rear output seal in one of these transmissions?

Searched the forum here and everywhere else I can think of for a cross-over part # with no luck. Dealership says "not available/discontinued". Trying not to buy an entire rebuild kit for just a rear seal so thought I'd toss this question out here.

Darn seal doesn't even show up in some of the schematics I've looked at but it leaks just enough to annoy right behind the yoke for the driveshaft. Since I have it out of the truck and cleaned up/painted I figure now is the time to repair it with it out of the truck for this clutch job. Wiped off some paint and still can't seem to find a readable number on the old seal or from any other source to reference it to a new one.

Suggestions before it goes to a transmission shop? :uhmk:
http://i957.photobucket.com/albums/a...ica/sm465a.jpg

I hesitate to take the rear completely apart as I don't know what is coming out with the yoke compared to replacing that front retainer which is 4 bolts/gasket and seal.

Mark :chevy:

Re: SM465 Rear Seal
 

i bought a set of front and rear seals for a granny gear in my 77 duelly last summer i got them at the local dealership, did you give them a part number or the name of the part? i just told them that i need a rear seal for an sm-465 in a 77 duelly and they ordered it for me.


but also i just found this
http://www.drivetrain.com/parts_cata...rhaul_kit.html

look under "Miscellaneous Kits" and there is a seal and gaskit kit for 16 bucks which is actully cheaper than what i paid at the dealership for about the same stuff good luck!

Re: SM465 Rear Seal
 

Appreciate the link! Found what you mentioned there for $16 and will call them tomorrow.

Just curious, is it a simple remove and replace or does more than just that cover come off and out of the back to replace the seal? Without x-ray vision I see parts on the floor if I try it. :uhmk:

Not sure why the local dealer parts 'kid' couldn't figure it out. Maybe the fact the truck is older than he is confused him...or I interrupted his lunch break. ;)

Again, thanks, thought I could find it but it wasn't happening.

Mark:chevy:

Re: SM465 Rear Seal
 

it should just pop out with a screw driver and press it back in with the right size socket and a ball peen hammer