JUST GENERAL TRANSMISSION QUESTIONS

[cekkk]

A brief temp gauge rise last summer has me wondering about the transmission in my '02 F350D PSD. It's totally stock and has 80k on it, all but the first 11k driven by me. Our new trailer is coming in May and will weigh in at 9k or more by the time we outfit it. We live at high altitude, 9k feet, so we're always pulling long grades in thin air. I'd like your suggestions as to how best to keep my tranny in one piece, which I think is a 4R100 as it's an auto transmission. I'm going to install gauges so I can watch temps and boost, but is the cooler adequate? Do I have to go to the 6.0 cooler? What about the cheapo Perma-Cools? Would a larger pan and additional fluid help? Just how good is this transmission in the first place?

[PolarBear]

With 80K on the trans you should still have quite a bit of life in it, especially if it has had proper maintenance during its life. That 9K trailer shouldn't bother your stock cooler. My Dad and I have both used our 01 and 02 7.3s with the stock coolers pulling 12-16K through the mountains from the midwest to the west coast several times. The 4r100 is a good trans and with stock hp should hold together good for you. Unless you just want to upgrade then I would pull the trailer before I'd spend the money. If you do upgrade then yes the 6.0 cooler is a very nice upgrade.

[Dietoremain]

You can NEVER have too much cooling.. im too cheap for a 6.0 cooler but i have the trucool and it does a great job...

[countryraised]

Originally Posted by Dietoremain

You can NEVER have too much cooling.. im too cheap for a 6.0 cooler but i have the trucool and it does a great job...

Too cheap?? I got my 6.0 cooler for $75 at the junk yard and had it flushed and acid dipped for $25. So $100 for a massive cooler is pretty cheap.

[Dietoremain]

Originally Posted by countryraised

Too cheap?? I got my 6.0 cooler for $75 at the junk yard and had it flushed and acid dipped for $25. So $100 for a massive cooler is pretty cheap.

yeah thats great... but remember here theres nothin in the scrap yards lol.. well if there is they charge a ton more. aye good ol california.

[dieselcrawler]

I think the factory cooler is marginal at best, and adding any addional cooling will help. My trans temp gauge has seen 220 degrees too meny times too easily, and will soon see an additional cooler...