How's every ones 6.4 stock tranny holdin up?

03silvertj · Apr 5, 2014

80k miles now tuned since about 50k (can't remember exactly) it's still holding up.

3brorce · Apr 5, 2014

92k and still going.

Dena6.4 · Apr 5, 2014

Just hit 100k, tuned with gear head race since 68k, never skipped a beat

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TRUBBS · Apr 5, 2014

TRUBBS said:
how much can one expect to spend on a built 6.4 trans?

Super08Duty said:
Depends on what your wanting as far as converter, billet internals, and clutches. You can buy rebuild kits for 1200 or have one built costing up to 9-10k with every option

thanks. just trying to get a good idea.

i dont think id need every option but a few. as i like to race/sled pull from time to time, just mainly like to be able to go fast when I want and have more then plenty towing power

RSK · Apr 6, 2014

bought my 10' with 88k on it, 96k now 4 months later and its been tuned for 7k in gear heads hot street at 547/1030 to the wheels and getting beat on daily fine for the most part. might have a slight issue. sometimes after a drive down the highway it doesn't downshift back into 1st when i come to a stop. it stays in 3rd or 4th. I think it might need a sensor or solenoid. but there is no wrench light and it doesn't slip other wise. I plan to continue kicking its azz daily and when it goes it goes, and i'll have mine built with elite parts with a dpc converter. no fluid changes yet even, and the truck was 100% stock before i got it, all i've been running is a dpf/cat delete and the hot street tune, but i may upgrade to the race tune from matt@gearhead.

strokinpower · Apr 6, 2014

I have broken just about everything on this truck except the transmission. It is a beast. I did have to replace the temp sensor. I want to put in a modified DD solenoid to help it last a little longer. Its been down the track several times, had the **** beat out of it on the street and pulls a trailer weekly. The truck is an early job 1 08 with 128k on it now.

6.4strokin · Apr 6, 2014

163k on my dads 6.4. It's been tuned since 100k

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3brorce · Apr 6, 2014

My solenoid also sticks once in awhile after a hard run thru the gears. It has done that since I have been tuned.

Csilva187 · Apr 6, 2014

60k here soon. tuned since about 32k. This summer will see how it goes, I did my studs and now an atmos coming outta winter soooo...

johnp115 · Apr 7, 2014

103k, gearhead mcc tuning since 70k. 1 Dyno run and one pass, feels really strong. Y'all make me feel good about mine lol i treat it pretty easy. Maybe ill throw a 76 on before a trans..

Delaware6.4 · Apr 11, 2014

Bought mine with 60k on it last april, didn't make it thru last track season before I broke the reverse planetary. Trans always felt good all 50 or so passes under 12.5

Stroked777 · Apr 12, 2014

Up to 104k on my truck. Tuned since 50k, 10 drag passes and 20 pulls. Still shifts the same as the day I tuned it

Fordtrucks · Apr 12, 2014

Mines on its way out. 145k miles. Reverse engagement is getting worse. After that it backs up fine and goes forward in all gears just fine still but its a ticking time bomb now im afraid.

JrStroker · Apr 12, 2014

Mine has 125k on it. Been tuned since 99k. Acts fine. Just have some solenoid sticking issues.

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Fordtrucks · Apr 13, 2014

JrStroker said:
Mine has 125k on it. Been tuned since 99k. Acts fine. Just have some solenoid sticking issues.

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Those are super easy to change. In case you didn't know.