This forum has been a well of knowledge for me, and it is all free. I have saved thousands on repairs thanks to all of you on this forum providing advice and the know how. I have taken this truck across the country several times without any problems while towing upwards of 5,000 pounds. I wouldn't have known about all the preventative maintenance vehicles require, and the truck just keeps on going because of the help from this forum. So I thank all of you for that, and I want to give back to those who may have a similar setup as me.
I've got a 1997 GMC 5.7 with about 257000 miles on the original transmission. I put the external filter setup on it at about 200,000 miles. This filter has about 30,000 miles on it with quite a bit of idle time too. I believe the 4l60e has lasted this long because of this extra filtration by the NAPA Gold, and from the tru-cool transmission cooler and Maghytec deep pan. The media looked pretty good at 30,000 miles. I think I will push it to 40 or maybe 50. I have included pics of it torn open and the external mount.
The engine had the headgaskets replaced at 200,000 miles along with the intake gaskets. The heads were rebuilt as well. The lower end is untouched. It has had a diet of everything from Valvoline Nexgen 5w30/10w30/10w40, German Castrol 0w30 , Mobil 1 0w30 AFE, Mobil 1 15w50, and Napa synthetic 15w50. I am currently using 15w50. Southern Texas heat is no joke.
NAPA Gold with a (I think) derale transmission mount. I used 3 flat washers and drilled into the plastic radiator/fan cover.
I placed a magnet on the bottom of the filter. It trapped visible amounts of ferrous material. Less material the filter has to deal with.
The magnet did its job.
The media looked pretty good.
Hope this information was helpful.
I've got a 1997 GMC 5.7 with about 257000 miles on the original transmission. I put the external filter setup on it at about 200,000 miles. This filter has about 30,000 miles on it with quite a bit of idle time too. I believe the 4l60e has lasted this long because of this extra filtration by the NAPA Gold, and from the tru-cool transmission cooler and Maghytec deep pan. The media looked pretty good at 30,000 miles. I think I will push it to 40 or maybe 50. I have included pics of it torn open and the external mount.
The engine had the headgaskets replaced at 200,000 miles along with the intake gaskets. The heads were rebuilt as well. The lower end is untouched. It has had a diet of everything from Valvoline Nexgen 5w30/10w30/10w40, German Castrol 0w30 , Mobil 1 0w30 AFE, Mobil 1 15w50, and Napa synthetic 15w50. I am currently using 15w50. Southern Texas heat is no joke.
NAPA Gold with a (I think) derale transmission mount. I used 3 flat washers and drilled into the plastic radiator/fan cover.
I placed a magnet on the bottom of the filter. It trapped visible amounts of ferrous material. Less material the filter has to deal with.
The magnet did its job.
The media looked pretty good.
Hope this information was helpful.
