Duramax Diesels Forum Truck of the Week
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Old 11-15-2012, 12:12 PM
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Default Allison trans cooler line fittings

has anyone found a fitting that will screw into place of the factory trans cooler line fittings? theyre a m22X1.75 which other then the factory fittings,,, i'm finding nothing on. Running a new cooler setup and all i lack to fire the new engine and trans in some fittings.
BUT if no one can help with that anyone have some old leaking trans cooler lines laying around they'd donate? I'll pay the ride and just need the ends plus about 6" of the hard line that comes out of the trans.
Thanks,
Matt
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Old 11-15-2012, 12:18 PM
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Wha...
there are upgraded transcooler lines you can buy, alligator performance sells them in 1/2"id and 5/8" id, i have a set of the 5/8" and they trhredded right into place on the stock cooler and the ppe cooler?
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Old 11-15-2012, 12:22 PM
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mmm i'm running 5/8 TOC to -12 fittings. fabbing up a whole different setup. had some m22x1.5 to -12 adaptors but no go. i'm bypassing the factory cooling circuit in the radiator and running just a big remote mount with a fan on it.
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Old 11-15-2012, 12:26 PM
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Hmmm, well if the threads are different than stock idk where you could go, maybe summit or jegs?

Good luck, sounds like it'll be sweet when its done!
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Exergy 60's, built trans by Ultimate Transmission with triple disc stall and billet input/output, Sonnax pump rub kit, cognito NTB 4", 35's on 18x10's, 4.10's and TruTrac, overloads removed, Deaver 2" leafs, AirRite 5000 helpers, CalTrac's, PISK, SuperSteer idler pivot, Hellwig BigWig swaybars, EFI-Live on custom mounted keyloc DSP-5, BD intercooler, SDP 3" cold side and EGR delete, HSP 3" hot side, Banks Ram Air, ARP head studs, DHD Y-bridge, DHD HPPS lines, custom fuel supply and return lines, AD2 165, DRP fuel tank sump, DP pinned H2O pump, Mishimoto rad hoses, SoCal billet flexplate, SoCal/ATI super damper, PPE gauges, PPE deep pans, BT lock up box, SeaTrab trans cooler, DRP 5/8" trans cooler lines, PPE manifold/up-pipes, DE 3" downpipe and 4" exhaust into over axel dump, DEI heat wrap and some rattle can color scheme


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Old 11-15-2012, 12:27 PM
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Joe at PPE has something different threaded into his,, waiting for word back as to what he did or where he got them
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Old 11-15-2012, 12:31 PM
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03+ should be -10 o-ring seal. My radiator fittings are nothing more than a -10 male o-ring to -10 flare. I believe it is a 7/8X16 thread. I'm not aware of any metric sized cooler fittings.
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Old 11-15-2012, 12:46 PM
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i'm talking about the fittings in the trans
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Old 11-15-2012, 12:52 PM
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going from this cooler to the trans,,
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Old 11-15-2012, 07:05 PM
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Quote:
Originally Posted by madmatt View Post
i'm talking about the fittings in the trans

Thought the 03+ all used the same fitting in the radiator, trans, and cooler? I know my 01 is a -8, but I don't have an 03+ to check in front of me.
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Old 11-19-2012, 05:32 AM
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the fitting size is 7/8-14 staight thread. call jegs up
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Old 11-20-2012, 08:30 AM
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hmm maybe the idiot at the parker store sent me down the wrong path then,,,,,, i've been chasing a ****ing m22 x 1.75 fitting for over a week,,, i'll run to town and see what i can't come up with tomorrw then thanks.
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Old 11-20-2012, 08:50 AM
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I would ditch the hose clamps on your cooler.
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Old 11-20-2012, 09:24 AM
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Quote:
Originally Posted by Mike L. View Post
I would ditch the hose clamps on your cooler.
X2. Go have some made.
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Old 11-20-2012, 09:34 AM
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why? how much pressure do they see? We spoke about how much the cooler sees once before and seemed to be within reason of what a barbed fitting and a clamp could hold. not arguing but could i have maybe misunderstood what pressure the cooler sees?
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Old 11-20-2012, 09:41 AM
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The cooler pressure can spike to 200 psi running stock mainline pressure ( 232 psi ). It can get a lot worse running higher mainline like a .130 shim ( 255 psi ). And even worse running my pressure regulator spring which is adjustable from 290 psi- 350 psi. Clamps are scary. Be carefull.
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