Careful installing your PPE pans on the 8HP

[caulk04]

So a while back at 50k miles I went with the PPE pan on my truck. Today at 90k I decided on a fluid/filter change. Found the filter oring like this:



Clearly when I installed the pan I rolled and pinched the oring. Aside from the occasional rough 1-2 and 2-lockup when cold I didn't notice any problems, but clearly that's less than ideal.

Otherwise it was a normal fluid change, took 7qt with the +2 PPE pan. I used Triax fluid and am confident in it. USA made fluid with all the ZF recommendations for 6HP 8HP and 9HP applications.

Fwiw to anyone, filled until it ran out then started the truck and ran it as per the green instruction sheet we've all seen 100x. Trans temp started at 60° and ended at 77° with the trans full. It took roughly 2qt more once started and run through the gears. I currently have installed in my trans a new selection of parts that keeps the cooler circuit open and restricts the heater circuit slightly until temp is reached and the thermostat closes off the heater circuit. This DOES still use the factory thermostat but keeps the cooler circuit open to eliminate the possibility of 250° trans temps.

 

[Wild one]

So a while back at 50k miles I went with the PPE pan on my truck. Today at 90k I decided on a fluid/filter change. Found the filter oring like this:

View attachment 554154

Clearly when I installed the pan I rolled and pinched the oring. Aside from the occasional rough 1-2 and 2-lockup when cold I didn't notice any problems, but clearly that's less than ideal.

Otherwise it was a normal fluid change, took 7qt with the +2 PPE pan. I used Triax fluid and am confident in it. USA made fluid with all the ZF recommendations for 6HP 8HP and 9HP applications.

Fwiw to anyone, filled until it ran out then started the truck and ran it as per the green instruction sheet we've all seen 100x. Trans temp started at 60° and ended at 77° with the trans full. It took roughly 2qt more once started and run through the gears. I currently have installed in my trans a new selection of parts that keeps the cooler circuit open and restricts the heater circuit slightly until temp is reached and the thermostat closes off the heater circuit. This DOES still use the factory thermostat but keeps the cooler circuit open to eliminate the possibility of 250° trans temps.

Did you lube the O-ring before you installed it Jesse.I've had my PPE pan and filter off several times now,and have never had the old O-rings tear on removal

 

[caulk04]

I can't imagine I installed it dry, wouldn't be like me. Lubed this one for sure and made sure to wiggle it in gently

I do definitely prefer the classic style trans filters that mount to the trans separately from the pan.

 

[Gero]

Hmm. That's odd that it would happen. There's really no way of checking it either without dropping the pan. I'm at 120xxxkm and my next schedule replacement fluid/filter is around 200k. It'll be 3 or so years for sure.

I too get the occasional rough 1-2 and slightly longer 2 lockup but only when cold.

 

[caulk04]

It's not really cold here yet, but so far it's all smooth shifts...