Well guys, this long awaited review is finally finished. Now this in incredibly long and probably over detailed, and over explained, but I think its necessary under these circumstances. Now this all started a while ago when my transmission threw a code for excessive torque converter slip. I knew it was already on its last leg, so it was finally a kick in the butt that it was time to replace it. Now I’ve already replaced the transmission in this truck once before, and installed a used unit (bad idea). Anyways, I set out doing ALL the research I could do, and I wanted something that was going to be able to last me, be ready to handle more power In the future, but wasn’t going to make me go bankrupt at such a young age haha. Now I know those 3 never go together, but I was looking for the best compromise between the 3. I looked at Factory Ford Reman units, Monster transmissions, Diesel Site, Brian’s Truck Shop (BTS), John Woods, and a few local shops. I decided against the Ford Reman unit, it was the one I pulled out originally, so it obviously wasn’t something I’d want again. Monster transmissions I’ve read are the same as Ford Reman units, very simple rebuilds and not very strong, just get the job done (but they are the cheapest complete transmissions out there). John Woods I tried calling several times, left several messages, and emailed him several times, with no response or call back, so I moved on. And there were no local shops around me that I had enough faith in to fork out the money to.
So then I emailed DieselSite, now they have their transmission on their website retailing at $4099 with their Torque Converter (view it here: E4OD Heavy Duty Transmission
). Which isn’t cheap to anyone, but like I said, I don’t want to end up putting another transmission in the truck in a year or two, or even 5 years for that matter. So I was willing to fork out the extra cash for some extra insurance. Dan at the DieselSite, and I went back and forth for several weeks about the “Legendary” transmission they build. But, me still being interested in other manufactures, I called BTS one morning before work. I ended up putting my name down for one from them. They started at $5000, but only later did I find out that their lead time was over a month! So I called up Dan the next day, and after speaking with him more about it, he convinced me to change.
Now Dan is a fantastic guy, super helpful, very knowledgeable, and happy to help. Dan truly is a dying breed of customer service, and you’ll understand why if you ever get on the phone with him. I also ended up purchasing the Tru-Cool 4739-1 Transmission cooler (which they have the best price around on) and External Transmission Filter Kit from him. Now to go along with the cooler, I wanted to step up from the 5/16” cooler lines that come one the E4OD
, to 3/8” cooler lines that come on the 4R100’s. So I asked Dan if they had anyway to convert the E4OD
to accept the larger lines, and thankfully, they make just the thing. They make a custom fitting with the check valve and spring removed, then a custom spacer remove the bypass tube (since I live in California and we never see temps below 30* lol) to ensure there is no restriction in the cooling system. You can read more about them here: Cooler Bypass Delete Kit
. Then I just had to purchase some 3/8” cooler lines, which thankfully Dorman makes a set for about $40! These are the ones I bought:
. So now I had a game plan, Legendary E4OD
, Legendary Torque Converter, Tru-Cool 4739-1, External Filter Kit, 3/8” cooler lines, and I even purchased a new transmission mount to go with this entire setup. Dan also mentioned if I ever do get over their 550-600hp mark, I can always box up the transmission, send it back and they can beef it up even further for just the cost of the parts. So say I pass the 600hp mark, I send it back, and they can install a billet input shaft, and if I intend to go even further with it, a billet front drum, and so on and so forth. Then, if it has some miles on it and I feel like it needs a refresh, for $1800 they will go through and replace all the wear parts and inspect all the hard parts to ensure it’s just like new again!
While also speaking with him, we got on the topic of warranty, what was covered, what would void the warranty, etc. And pretty much as long as I change the fluid every 30,000 and I stay below the 600hp mark, its covered. No questions asked. Now I know some other company’s (i.e., Monster, Jasper, etc.), have in their fine print saying roughly, “If you tow in overdrive, the warranty is void”. After telling Dan this, he laughed and said, “I DARE you to tow in overdrive!”
I finalized all this with Dan on a Saturday, (yes he was nice enough to work off the clock, on his own time to help me!), going over everything about it, what my options are, and what I could do in the future etc. Then Monday morning at about 6:30 am he sent me over the Invoice for it all, and they started building it at 7am. Pics of the build that Dan sent me: