Built trans maintenance

05LLYDMAX

Midget Nate
Jun 29, 2013
124
35
28
How often does everyone change filters and fluid? Stock trans i did it every 35-40k miles. thanks!
 

catman3126

Ehhh?.... You don't say?
Jul 24, 2012
2,636
0
36
NE Oregon
15k filter and two oil drop and refills at 30k for mine. And after 30k when I put the deep pan on there was nothing not even sediment in the stock pan when I dropped mine.
 

NC-smokinlmm

<<<Future tuna killer
May 29, 2011
5,195
360
83
At Da Beach
After the first few filter changes you can go back to normal intervals for the filter. Fluid wise I ran my last truck over 50,000 on the synthetic fluid I put in when it was built, never changed it. Still looked and smelled great when I sold the truck...
 

mike diesel

I'm alright.
Sep 6, 2012
4,005
0
36
SLC, Utah
Im on 3rd fluid change and 4th external filter and 3rd internal filter in 22,000 miles. Excessive yes...but I dont care.
 

PureHybrid

Isuzu Shakes IT
Feb 15, 2012
3,492
472
83
Central OH
After I built mine, changed spin on filter at next oil change. Now its every other oil change. Drained fluid once after 30k, and I don't plan on changing it again unless it overheats or something dumb.
 

WolfLMM

Making Chips
Nov 21, 2006
4,005
25
48
38
AL
My 2001 went 150k at 500hp with just changing the spin on regularly.
 

05LLYDMAX

Midget Nate
Jun 29, 2013
124
35
28
Thanks! I've changed the spin on, but fluid and filter have 36k on em, trans is a year old. started at 500hp I'm right at 600hp now.
 

05LLYDMAX

Midget Nate
Jun 29, 2013
124
35
28
just noticed my temps are a little high and before i run 2 coolers ill change the fluid
 

05LLYDMAX

Midget Nate
Jun 29, 2013
124
35
28
I mean from last summer with a built trans until now. I'm sure the increase in power has something to do with that as well
 

Hot COCOAL

May the farce be with you
Jun 9, 2012
4,433
0
0
I mean from last summer with a built trans until now. I'm sure the increase in power has something to do with that as well

I wouldn't think you'd see increased trans temps from added power unless you were using the added power?

How "built" is the trans? Are you running an upgraded cooler and cooler lines?

600whp shouldn't tax a built trans...although your tq multiplication table might need to be slightly altered for it or maybe change to a different stall speed in the converter

But I'd start with an upgraded cooler if fresh fluid doesn't help, as mentioned above, built transmission's do run a bit hotter and thus the fluid should be changed a little more frequently, well IMHO, 2x as often as a stock trans. Especially if you're havin fun with it!

:2cents: