CK5
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Find some way to temporarily force that all back together and take it for a GENTLE drive. If 4th works and everything else is fine a simple case swap is cheap and affordable.

If that’s all it is, and that failure isn’t caused by your desired use keep on keeping on. But if HP and stupidity cause that failure, we’ll you’re Going to want to find another route:flipoff7:
 
Well I'm not sure what gentle driving is. I think I might try that and see if everything works still.

I have a friend who is a UTI instructor and has a 4l60e case and said we can swap it all over. I think I'll put new clutches and friction plates in just because.

https://gearstar.com/transmissions/...4-transmission-with-torque-converter/590/c15/

I have some of these parts in it already, I'll probably go with that clutch pack setup and put a transgo shift kit in it as well. Should be able to have it together for $500
 
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Here is what I'm looking at.

https://www.amazon.com/gp/product/B01L78FD7I/ref=ox_sc_act_title_1?smid=A2QOROTAURQN0I&psc=1
here is a better list of the parts.
https://www.ebay.com/itm/4L60E-Mast...olene-PowerPack-Drum-Band-97-03-/252515432523

https://www.amazon.com/gp/product/B072LSYVVD/ref=ox_sc_act_title_3?smid=A3B850ZGIPDG3A&psc=1

https://www.amazon.com/gp/product/B01KYCYB94/ref=ox_sc_act_title_4?smid=A1SXRMLEZIILVE&psc=1

I already have the 5 pinion planetarys. I do have the beast sun shell in it already but thought why not get another one just in case? This build sheet should be good to "650hp" After this the only thing else I can do is billet parts and at that point it's 4L80E. I would love to do one but the additional cost beyond the trans hurts.
 
I'll just say this, there is a reason they put 4L80Es behind the 3/4 and 1 ton trucks, the 60s are meant for light use, the 80s are made for heavy use. When you see the parts inside a TH400/4L80 then you will understand the difference.
 
Thought for sure I would get some don't do it posts or your a idiot again.

Honestly I know Jack shit about automatic transmissions. As far as I'm concerned power hits the flexplate, magic crap happens inside this somewhat strong yet fragile aluminum case, then there is a shaft on the end that spins at different speeds. They like clean red fluid, to be kept. at a nice balmy 180 to 200 degrees and beyond that:dunno:.

So your list of planned parts sounds great for your little tranny. Only you can decide to take the big one and get a bigger tranny. I understand you will need to upgrade your input diameters, tranny control systems, and possibly having to get your own shaft shortened. Until your ready, stick with making it rain on the little trannies. :haha:
 
If I didn't need to change everything and have to pay for a new tune I would go 4l80e. Honestly the internals of mine right now are fine just the case cracked.
 
How can you be sure you internals are fine?

Carnac the magnificent.

Welcome once again, O Great Sage... I hold in my hand these envelopes. As a child of four can
plainly see, these envelopes have been hermetically sealed. They've been kept in a #2 mayonnaise
jar since noon today on Funk and Wagnell's porch. No one knows the contents of these envelopes,
but you, in your divine and mystical way, will ascertain the answers to these questions having never
seen them before.
 
We just like Carnage that we don't have to pay to fix. You provide excellent entertainment.

You know what it takes to fix the problem. If you choose your way to do it and it don't last it's on you. You are stubborn about it and that's ok. I think we all were in our younger years.
Carnac the magnificent.

Welcome once again, O Great Sage... I hold in my hand these envelopes. As a child of four can
plainly see, these envelopes have been hermetically sealed. They've been kept in a #2 mayonnaise
jar since noon today on Funk and Wagnell's porch. No one knows the contents of these envelopes,
but you, in your divine and mystical way, will ascertain the answers to these questions having never
seen them before.
Wow bringing out Carnac for the kids huh?
 
You know what it takes to fix the problem. If you choose your way to do it and it don't last it's on you. You are stubborn about it and that's ok. I think we all were in our younger years.

Wow bringing out Carnac for the kids huh?

I also know that we older guys can be stubborn too..
So knowing what the real truth is of several of the past transmissions not being of quality builds, and the fact that Ben didn't get the cooler flushed properly in the radiator or quit using it for several units, (which I don't believe any of us told him enough, soon enough) then combine all of this with what could be a fluke crack in the servo housing area or a mistake by Ben in removal, I ask how would this be different with a 4L80E ? Yeah, no 4th gear servo piston exposed to the outside.
A 4L80E doesn't handle contamination any better as far as I know, it doesn't work perfectly even if it's old, worn out or put together wrong.
I have beat on my 700R4 with a big block for 40K and it still goes. Apparently I should have left my old avatar pic if the burnout contest that it went to. And that it survived the stupid stuff I did in Moab that got me an exhibition of speed ticket.. well...
And there have been lots of immature moments with mone combined with some wheeling and driving. Still works fine as long as the oil level is up. (NP205 coupler seals won't hold)
I believe that I remember Stephen telling me of problems they had with a couple of 4L80E transmissions.. but maybe since that and what I have done didn't get posted on the internet, there isn't a problem. ?
I honestly don't see how the broken flange at the servo housing is caused by a transmission weakness. Sorry for you Ben if you believe that you cracked it, lessons learned then?
But I would check into what has been said about torque management just to verify that it doesn't contribute to low line pressure sometimes. Just CYA there IMO.
 
Just be clear, reviewing my post it comes off a bit harsher than I intended.

I meant to be a little more to the point that Ben felt he was going to get another round of the "we told you so" posts after another failure. I think he understands what could/should be done, but at the given moment of each failure he didn't have the funds or time to get it done right. It sucks, I think we've all been there too.

I think it takes some balls to publicly admit the failures too. Ben has been pretty open to share the bad with the good when it comes to this truck. Where others might have pulled back and clammed up after the second or third failure.

Like I said, I was a bit harsher than I thought when I put that post together. But I think it comes from the Dad side of me as I've had similar frustrations with my own son who is also stubborn and knows better when I've told him how to get something done. Didn't mean to come off that harsh, so apologies if I offended.
 
I think 4l60’s are fine at this power level. I’ve personally put them through much worse.

Maybe it’s a arizona thing?

I would seriously reconsider your torque management tables however.
 
In all honesty, I've been down the same road Ben is going down and it wasn't that many years ago. I have a TH350 in my buggy, it's maxed out, I can't add any more HP at this point and expect the transmission to live. It has some really high quality parts that no one knew if they would last and if they do how long. We were breaking input drums on 1-2 shifts at full throttle, when racing that 1-2 shift happens a lot. I want to say when we were done throwing parts at transmissions we had $6,000 into a TH350. It would have made much more sense to just step to a TH400 with moderate parts and have a much better transmission with a lot of potential left and the ability to add HP. Unfortunately my chassis would require massive changes to deal with the added length. So the worlds most expensive TH350 is a necessity, and a slightly warmed up 6.0L is all I will have in this vehicle.

I know that for several transmissions Ben tried to use the cheapest possible route to get it done, this leads to cheap parts, cut corners and in general bad things when you need each thing to be right in order to be successful. At this point even I think he's better off throwing dollar bills in the g-string of the 4L60E tranny god and see what happens. Worst case scenario out of this is another blown tranny (which gives me all sorts of ammunition:haha:) but there will be hard parts from it that are worth something on the used market. If it fails again in the next few years then it's 4L80 time, and if it was me I would not be doing a Electronic version, I would do a full manual with slightly upgraded parts. That's a $6,000 transmission minimum when you start from scratch. The way he wants to drive it and hot rod everything makes a manual valve body with full line pressure shifts make sense, it's going to suck at times but will be more what he needs.

Ben has incredibly thick skin with this stuff and has fun giving Caitlyn the Frank and both beans. And I applaud him for his open and inviting attitude in dealing with this this problem.
 
I haven't looked up prices at all, but you're gonna be just about starting over needing a new case and rebuilding again - is it that much more money to fit a 4l80 in at this point?

I honestly don't know... I get into that MAW mindset when I tear into something, I'm lazy and only like doing something once.
 

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