Trans fluid and filter-do it myself?

[Badfish740]

I'm wondering if changing the trans fluid and filter is something I should try to tackle myself. I know that the 4R100 takes something like 18 quarts, but a bunch of it hangs out in the torque converter unless you flush it so should I just have a shop do it? What would be a reasonable price to pay for a flush/filter/fluid change? I've also heard lubeguard mentioned as a good additive, should I have them throw that in during the change as well?

[Trailer Rails]

If you do it or pay someone to do it is your decision, it is a little bit of a project but not too bad. It can be a little messy. There is a drain on the torque converter to get all the trapped fluid out.

[fire370]

I would just do it myself if I were you just so you know that all of it comes out and all of it goes in new. Most tranny services only drop the pan, fluid in the pan and filter. Clean the shavings off the donut, install a filter and top her off with 6 or so qts of fluid to bring it full.

I am due for a service on my 2000 in a couple of thousand miles and will be changing it over to Amsoil ATF syn. I will do the same in our 6.0's once they come out with the fluid for it. And they hold something like 27 qts!

[03f3507.3]

id just do it yourself its an easy thing to do just remember to get the old washer out of where the filter is instereted changed mine for the second time and found that i forgot to get the washer out the first time

[sc0ttjb]

There is a place near me called Transmedic that will do a complete flush and filter change for $100 a steal considering the time, mess and work savings. I was told by them that some of these trannys came with torque converter drains and some didn't. They also added a additive that seemed to make a noticeable improvement in shifting smoothness.