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got an 82 CJ7 the Dana 300 is leaking from the (what looks like the pan for it) do i need to drop the Transfer Case to replace the gasket.or can i just support the Transmission with a floor jack and replace it like that.
The other question should i just use on of the papper gaskets or some of the napa right stuff or gasgacinch
got an 82 cj7 the d300 is leaking from the (what looks like the pan for it) do i need to drop the transfer case to replace the gasket.or can i just support the transmission with a floor jack and replace it like that.
The other question should i just use on of the papper gaskets or some of the napa right stuff or gasgacinch
neal90, when I rebuilt the tcase (Dana 300 ) six months ago, it was easy to put the pan and a new rubber seal back, but tough to torque down the pan bolts without the gasket squirting out and allowing a leak.
I used VersaChem Prime Seal type 3 aviation gasket sealant, a brown molasses-like goo that dried after a day to sticky-tacky. I had to progressively torque the bolts to light seat, let the stuff cure for 5-6 days, then retorque to just shy of squeezing gasket material out of position.
I had one leak after running a few hours, not in the pan gasket but in the heavy 4-bolt plate with shims. I pulled the plate and shims, cleaned off the red sealant recommended, and after alcohol cleaning used the type 3 aviation gasket sealer. Leak gone!
Next time I tear it down, getting all the covers off will be a piece of cake, since the aviation sealant never really hardens.
