do I need to apply high-temp anti-seize for tranny/diff drain/fill bolts?

arsenalrocks · Jun 21, 2017

going to change the tranny and diff fluid tonight, just wondering if I need to apply any special anti-seize for the drain+fill bolts?

I got some of this, wonder if i should use it

thanks

montreal ponies · Jun 21, 2017

I used teflon tape.

Hack · Jun 21, 2017

I used automotive liquid teflon sealant. IMO that's what should be used for threaded plugs.

wildcatgoal · Jun 21, 2017

Don't use anti-seize.

Demonic · Jun 21, 2017

Are you changing the fluids because you actually have that much mileage or for another reason?

arsenalrocks · Jun 21, 2017

pretty much all track miles, tech pack car, no coolers on trans/diff

for the diff I will be putting in some 140 weight gear oil instead of the stock 85

Demonic said:
Are you changing the fluids because you actually have that much mileage or for another reason?

GTP · Jun 21, 2017

I didn't use anything. Just tightened the drain plug and checked for leaks. No torque wrench. There was never any leak.

RadBOSS · Jun 21, 2017

arsenalrocks said:
pretty much all track miles, tech pack car, no coolers on trans/diff

for the diff I will be putting in some 140 weight gear oil instead of the stock 85

The thicker oil will make it run hotter, with or without cooler. Is that what you really want?

cking · Jun 22, 2017

I like this stuff non hardening high temp

Hack · Jun 22, 2017

cking said:
I like this stuff non hardening high temp

Don't use that on plug threads. Use teflon tape or paste that is designed for the task.

cking · Jun 22, 2017

I think your wrong here is manufacture instructions
DIRECTIONS:Apply thin, even coats to each surface. Allow to air-dry a few minutes before assembling. To thin sealant, add 188 proof denatured alcohol. For use on most types of gaskets, machined surfaces and screw thread connections of airplane and automobile engines. Good to 400'F.

https://www.permatex.com/products/g...aviation-form-a-gasket-no-3-sealant-liquid-3/

click on INSTRUCTIONS

firestarter2 · Jun 22, 2017

cking said:
I like this stuff non hardening high temp

Ive used that for over ten years..

Is it a bolt or plug? You shouldn't need anything on a bolt(I assume it has a washer)

Hack · Jun 22, 2017

cking said:
I think your wrong here is manufacture instructions
DIRECTIONS:Apply thin, even coats to each surface. Allow to air-dry a few minutes before assembling. To thin sealant, add 188 proof denatured alcohol. For use on most types of gaskets, machined surfaces and screw thread connections of airplane and automobile engines. Good to 400'F.

https://www.permatex.com/products/g...aviation-form-a-gasket-no-3-sealant-liquid-3/

click on INSTRUCTIONS

I've used it before and I wouldn't use it on threads.. It says to use in an engine, but I wouldn't use it there either. :cheers:

How do you apply it to both surfaces when you are using it on threads?

It's a sticky, glue like substance that helps to hold a gasket in place. I've only used it on valve cover and oil pan gaskets.

Sprintamx · Jun 22, 2017

FWIW, the factory applies a "paste" sealant to the OE transmission and diff plugs. And, at least in race applications (which is what I am familiar with), it is common practice to use a paste sealant for oil and transmission cooler connections. The reason is to avoid teflon thread debris from entering a closed system (teflon tape easily shreds), and the belief that a high-quality paste holds up better and provides a better seal in high-temp, chemical applications.

Using teflon tape is not categorically wrong in this application, but an appropriate high-temp thread sealant paste may be "better."

arsenalrocks · Jun 22, 2017

I think i know what you are referring to, there are some red "paste" on the plug, and I think they are meant to act as a sealant.

at the end I didn't use anything additional.

Sprintamx said:
FWIW, the factory applies a "paste" sealant to the OE transmission and diff plugs. And, at least in race applications (which is what I am familiar with), it is common practice to use a paste sealant for oil and transmission cooler connections. The reason is to avoid teflon thread debris from entering a closed system (teflon tape easily shreds), and the belief that a high-quality paste holds up better and provides a better seal in high-temp, chemical applications.

Using teflon tape is not categorically wrong in this application, but an appropriate high-temp thread sealant paste may be "better."

do I need to apply high-temp anti-seize for tranny/diff drain/fill bolts?

arsenalrocks

Well-Known Member

montreal ponies

Well-Known Member

Hack

Well-Known Member

wildcatgoal

@sirboom_photography

Demonic

Well-Known Member

arsenalrocks

Well-Known Member

GTP

Deutsche Pony

RadBOSS

Well-Known Member

cking

Well-Known Member

Hack

Well-Known Member

cking

Well-Known Member

firestarter2

Well-Known Member

Hack

Well-Known Member

Sprintamx

Well-Known Member

arsenalrocks

Well-Known Member