Just smoked another transmission...

Corb@CorbinShipping · Feb 21, 2013

Well, without taking it apart, all of the techs at the Ford dealership in Deming, NM, believe that it is the torque converter. The fluid wasn't as bad as I had thought. The fluid DID have a lot of shiny metal in it... The billet input shaft is still in good shape, and the TC hub "had a lot of wobble to it"...

Now, that is TC # 2 that I have wrecked... In the mean while, I have had a STOCK TRANS, AND STOCK TC last, with the same type of tuning, last for 130,000 miles... And both of the TCs that I have had self destruct, have held up in 1,000 hp trucks... my driving habits have not changed. I have yet to do as boosted launch, on either TC, I have yet to tow heavy on the latest one, and I only towed 17 K one time with the first one... for a whopping 14 miles on I-10...

Also.... I LOVE THE GEARHEAD TRANS TUNING... so far... Very clean, very strong, and very smooth. No more jerky pedal. I ran it from 50 up to 85 on the interstate, and it stayed below 40 psi, but climbed MPH very well.

I also put new shocks on there... WOW, those factory shocks were crap, and wore the hell out... The bilstien 5100s were a great addition.

MINK · Feb 21, 2013

Wow - you sure you havnt had a f'd pump this entire time? I cant see how you keep killing the converter regardless of where it's from.

Corb@CorbinShipping · Feb 21, 2013

My stock trans was OK when the first TC went.. That was just a TC upgrade, stock everything else. #2 was a full built trans (a whole new unit) and TC... I shared NOTHING between the two transmissions...

6.4stroke · Feb 21, 2013

Corb. What TC's did u have in it?

Corb@CorbinShipping · Feb 21, 2013

6.4stroke said:
Corb. What TC's did u have in it?

#1 was DPC on stock trans with deep pan
#2 was RCD on Iron Pac 3, with deep pan and Billet input shaft

Mike@MPD · Feb 21, 2013

Damn man I don't know how you can kill so many trans' without really beating on them. Maybe you need to beat the sh1t out of them from now on lol

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6.4stroke · Feb 21, 2013

A 4r has ur name on it btw I have 21k on my built tranny has RCD TC and suncoast internals no problems. Corb ur the 5r killer

Dzchey21 · Feb 21, 2013

6.4stroke said:
A 4r has ur name on it btw I have 21k on my built tranny has RCD TC and suncoast internals no problems. Corb ur the 5r killer

How would that solve anything...he's breaking converters not transmissions

Dzchey21 · Feb 21, 2013

Mike@MPD said:
Damn man I don't know how you can kill so many trans' without really beating on them. Maybe you need to beat the sh1t out of them from now on lol

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I agree lol

Spatel23 · Feb 21, 2013

Im very interested in what the actual cause is.

Corb@CorbinShipping · Feb 21, 2013

Mike@MPD said:
Damn man I don't know how you can kill so many trans' without really beating on them. Maybe you need to beat the sh1t out of them from now on lol

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Ill try that technique on the 250 next month... LOL

6.4stroke said:
A 4r has ur name on it btw I have 21k on my built tranny has RCD TC and suncoast internals no problems. Corb ur the 5r killer

No man, I like my 5 speed, just need to figure out what is going on...

Dzchey21 said:
How would that solve anything...he's breaking converters not transmissions

yup

Dzchey21 said:
I agree lol

Ill put a little more to it this round. But, I can honestly say that I have not beat on these things at all, and they keep dying...

Spatel23 said:
Im very interested in what the actual cause is.

same here.. this **** is getting expensive... And this in on the near stock rig.... I knew the other rig was gonna be pricey, but damn...

Mike@MPD · Feb 22, 2013

TCM?

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Corb@CorbinShipping · Feb 22, 2013

Mike@MPD said:
TCM?

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no codes.... all is well, as far as can be seen...

B585Ford · Feb 22, 2013

Did you happen to monitor TC slip after you lost 5th gear?

Corb@CorbinShipping · Feb 22, 2013

B585Ford said:
Did you happen to monitor TC slip after you lost 5th gear?

Yup, and nothing there led me to have any concern at all. 0.00 - 2.50 was about all I saw. I never had hit it harder than that. Had not tried to see how much it would slip, nothing.

Fast-6.0 · Feb 22, 2013

450's are especially hard on these converters. The factory lasted because it slipped and lessened the shock load. The aftermarket stuff isn't slipping so the shock load is killing parts.

Back in the day if you build a Turbo 400 in a chevy motorhome, you didn't make it shift hard, or even very firm because everything broke.

I honestly feel that F450 trucks with built trans should run softer tuning, a little slip is better.

Corb@CorbinShipping · Feb 22, 2013

Fast-6.0 said:
450's are especially hard on these converters. The factory lasted because it slipped and lessened the shock load. The aftermarket stuff isn't slipping so the shock load is killing parts.

Back in the day if you build a Turbo 400 in a chevy motorhome, you didn't make it shift hard, or even very firm because everything broke.

I honestly feel that F450 trucks with built trans should run softer tuning, a little slip is better.

I'm leaning towards that way of thinking, Tadd... Not smooshie, but not neck snapping...

WoodBoy · Feb 22, 2013

Mike@MPD said:
TCM?

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Same thing I thought too

Mike@MPD · Feb 22, 2013

Ccorbin said:
I'm leaning towards that way of thinking, Tadd... Not smooshie, but not neck snapping...

Lol smooshie very technical term

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Dzchey21 · Feb 22, 2013

Fast-6.0 said:
450's are especially hard on these converters. The factory lasted because it slipped and lessened the shock load. The aftermarket stuff isn't slipping so the shock load is killing parts.

Back in the day if you build a Turbo 400 in a chevy motorhome, you didn't make it shift hard, or even very firm because everything broke.

I honestly feel that F450 trucks with built trans should run softer tuning, a little slip is better.

Didn't Travis's truck just break a converter too?

The thing about something that heavy us if you can feel a hard shift that's no good. I think travs truck weighed 11500, everyday cruising weight... His truck shifted way too hard.

Gotta remember replacing clutches every year or two is always better than breaking shafts, converters, or gears... My little truck runs pretty soft shifting for this reason