TH350 transmission

[dasanii19]

If you have money to throw at it the aluminum pan is better because it helps cooling has bigger capacity and a drain plug.
But I don't think it is only $50.
If you want to do something cheap and usefull, add a drain plug to your pan.
I believe Summit has a kit for that and it's cheap.

Nice drain plug tip, ill keep that in mind for sure. Thanks

 

[slider]

Again, Never use sealant rtv, silicone etc on a gasket. Glue it in place with hitac of gaskasinch and bolt it down.

 

[bigjimmy82]

it looks as though the exhaust is super close on the sides of the pan, that heat will kill a tranny

as for a pan DeRale cooling products makes a cool one with cooling tubes running through it, it costs ~$100 though

 

[dasanii19]

Again, Never use sealant rtv, silicone etc on a gasket. Glue it in place with hitac of gaskasinch and bolt it down.

High temp RTV gasket maker is bad on valve cover gaskets and tranny pan gaskets? I've always added a thin layer of high temp RTV to my gaskets and never get leaks. Hmm, I think it may just be a person preference.

 

[BlazerBud]

Thank you!!

So whats the best way to clean all the sludge from the pan and screen?

Also what transmission fluid should I put in it after I get it all clean and the filter changed? any special filter I should use?

Last but not least, what gasket should I buy? is there a pattern I should follow while tightneing the bolts to the pan back up? what should they be torqued at?


Oh yea, is there a trick to pulling the pan off? I dont have a lift, ill be working under the truck on the ground. Ive never done this before so I dont want to drop tranny fluid all over my face..

What I am about to tell you is very controversial but works, do not attempt at my advice, make up your own mind. Sludge is caused by the clutch dust overwelming the tranny fluid, this fluid is detergent and should suspend the dust to prevent sludge. Once the fluid is old and has no more cleaning power, the sludge deposits and clogs stuff. Here is what a Guy I know did. Drain the fluid, fill it with diesel, run it for a few hours, and let the sludge dissolve or dislogde, and the seals get soft again. Drain it. Fill it with tranny fluid, run it for a few hours and then drain it. FIll it with new fluid and run it for a week, drain it. Now fill it for the last time and it'll be good.

 

[imiceman44]

What I am about to tell you is very controversial but works, do not attempt at my advice, make up your own mind. Sludge is caused by the clutch dust overwelming the tranny fluid, this fluid is detergent and should suspend the dust to prevent sludge. Once the fluid is old and has no more cleaning power, the sludge deposits and clogs stuff. Here is what a Guy I know did. Drain the fluid, fill it with diesel, run it for a few hours, and let the sludge dissolve or dislogde, and the seals get soft again. Drain it. Fill it with tranny fluid, run it for a few hours and then drain it. FIll it with new fluid and run it for a week, drain it. Now fill it for the last time and it'll be good.

Instead of wasting all that fluid and diesel (not very good for the inside of the tranny.) he can use a readily available tranny conditionner sealer fluid and do it once.
If he needs to use anything else to recondition the seals, some people use brake fluid because it has silicone that will swell the seals and make them seal better.
I would do the brake fluid added to the existing fluid before dumping it, run it for 30 minutes then dump all the fluid and replace the filter and fluid, if that doesn't work, then a rebuild is a must.