It came factory my truck is the late model 2004 with the 5.4 hell my manual didn't even have my transmission number in it so I had to look it up online and find out that way. Anyhow common sense it wasn't the 4r70 due to the fact it listed what transmission letter it was in the manual it just didn't show the 4r75.
Oh yea the kits for 4r70 and 4r75 are interchangeable I came to find out from the tranny guy. He told me the only difference between the 4r75 and 4r70 internally is that the 4r75 has an extra clutch plate so it's not hardly any better. One more clutch plate won't make a big difference it prolly just reassured them to make it past the warranty period lol.
As for monster transmission those are the same clutches the old guy there was talkin to me about they're kolene clutches just couldn't remember the name was all. They're putting all except for the kolene clutches and the shift kit in my transmission for 1800 the kolene clutches are another 200bucks I'm thinkin of investing in but I want to see what failed before I start upgrading much.
These guys I'm workin with rebuild from the ground up with almost all new parts including steam bathing and painting the transmission so it's not all that bad a deal vs paying some guy who only replaces the cluches for a grand ha
I'll update with what happens he's runnin behind so he won't break into it till friday now
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