Transmission flush or pan drop?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

HoosierJeeper

Gold Supporter/Admin
Staff member
Administrator
Joined
Jan 20, 2009
Messages
20,855
Reaction score
266
Location
Western WI
I have about 60k on my transmission since the rebuild. I'm getting conflicting information - would it better to do a pan drop or take it do the dealer to do a flush.

Thanks!
 

LibertyTC

Well-Known Member
Staff member
Moderator
Joined
Oct 24, 2008
Messages
9,081
Reaction score
1,747
Location
B.C. Canada
The only way to guarantee 100% new ATF+4 in there, is to use the dealer's re-circulating machine.
60 K is a good service interval HJ. ATF+4 gets real hot !! & the friction modifier's do break down over time.
For me, it's good piece of mind knowing all of the old fluid has now been removed & replaced.
 

uss2defiant

Full Access Member
Joined
Jun 25, 2014
Messages
3,597
Reaction score
152
Location
Tucson, Arizona
fluid exchange then change filter.
It's on my to do list too but I'm using my DIY setup for the fluid exchange.
 

HoosierJeeper

Gold Supporter/Admin
Staff member
Administrator
Joined
Jan 20, 2009
Messages
20,855
Reaction score
266
Location
Western WI
Permatex Ultra Gray RTV work? Do I need to do it at a certain temp? Do I need to measure what comes out? Thanks for the replies!
 

Leeann

Full Access Member
Joined
Mar 9, 2013
Messages
2,436
Reaction score
241
Location
Maryland
I think so. I use the ultra black, but I think it's essentially the same. No, as long as you're above freezing you're probably fine.

No, fill by the stick with the Jeep warmed up, in neutral with the e-brake set. Should take 4 qts before you start it up, then add as needed.
 

Apex

Member
Joined
Feb 28, 2008
Messages
83
Reaction score
7
Location
Virginia
Transmission flushes may subject the trans to higher than normal operating pressures. If you ask me it’s another stealership ploy for your money.

But what do I know, only got 315,000+ miles on my factory 42RLE. Only changed fluid and filter once. Added Lucas stop slip 7-8 years ago maybe? Still going but I can tell she’s feeling her age.
 

uss2defiant

Full Access Member
Joined
Jun 25, 2014
Messages
3,597
Reaction score
152
Location
Tucson, Arizona
I think so. I use the ultra black, but I think it's essentially the same. No, as long as you're above freezing you're probably fine.

No, fill by the stick with the Jeep warmed up, in neutral with the e-brake set. Should take 4 qts before you start it up, then add as needed.

Any leaks with the ultra black? I was going to use that too since I had that lying around but it doesn't specify for transmission applications online.
Originally bought to be used on the rear diff but I ended up using a gasket instead.
 

Apex

Member
Joined
Feb 28, 2008
Messages
83
Reaction score
7
Location
Virginia
I’ve been running a Lubelocker since putting a new diff cover on the 8.25. No RTV or sealants needed, no leaks so far at 10k since change. They make one for the 42RLE so I was gonna try that out next. Still need thread sealant for that one bolt though. D30 Lubelocker should work for the D30A also.
 

Latest posts

Members online

Top