Duramax, allison transfer case pump rub fix - Chevy and GMC Duramax Diesel Forum

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post #1 of 11 (permalink) Old 07-20-2010, 08:29 PM Thread Starter
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Duramax, allison transfer case pump rub fix

Just wanted to post this, apparently if you have a new venture 263xhd transfer case on your 4x4 allison dmax package, it will eventually rub through the magnesium housing, I see online you can get a aftermarket pump plate for 175 bucks, or riverside gear sells a plate for less, My local gear shop, (border parts, spring valley ca.) sold me a 8 dollar steel clip, a little different than stock, supposedly holds up better, but I didn't like the grove the old clip left, so I put the old clip in the grove it made before, and tacked it to the new clip, double thick to last longer, I'm going to weld the mag housing tomorrow, I had to order the rod, az92e is the stuff to use, TGAW AC short wave length, high freq. preheat to 300, weld, let cool slowly. anyways, this fix is costing me under 50 bucks including the welding rod and should be good to go, just wanted to pass this on, if I wasn't a welder, I would get the two part epoxy stuff CAT sells for case repairs, I think it would work fine, good luck!

marcus weigle
Weigle metal fab co.
San Diego CA.
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post #2 of 11 (permalink) Old 07-21-2010, 11:09 AM
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good info i need to do mine soon.

03 GMC 2500hd crew cab 4x4
5" exhaust
AFE intake
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post #3 of 11 (permalink) Old 07-21-2010, 12:04 PM
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what models

what model trucks are these on? thanks

06 lbz cc/sb, edge evo level 2, mbrp 4" front pipe back, egr blocked, transgo jr, michelin mts285/75/16
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post #4 of 11 (permalink) Old 07-21-2010, 12:35 PM Thread Starter
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models, I think all of them.


welding was a cinch, have the right stuff and it's a slam dunk.
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post #5 of 11 (permalink) Old 07-28-2010, 08:51 AM
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Quote:
Originally Posted by Dan Carlson View Post
what model trucks are these on? thanks
Won't swear to it, but I believe the LMM's don't have this issue, updated TCase. Chris

'08 Chevy LTZ CCSB, LMM, Dark Blue Metallic. Edge CTS Insight|Danville Billet 3794 and EFIlive DSP5 tunes|
Fleece Performance Engineering SC GMax6 with 1058|ProFab EGR delete/manifolds/up-pipes|PPE Trans Cooler|Cognito Idler/Pitman braces|Rare Parts Tie Rods|
Fumoto Valve|18x9 EA series 507's|Nitto TG2 325/60r18|Airlift 5000|Bilstein 5100's|GoRhino SS Dominator III|T-Rex grill|Bushwacker Pocket Style flares painted to match|Banks Techni-cooler|Banks IC tube|Banks Ram Air intake/scoop|Titan 52g tank|ADII 165|Recon smoked headlight with DDM HID|
2008 Sierra 375QBQ 5th wheel
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post #6 of 11 (permalink) Old 07-28-2010, 09:07 AM
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07+ the issue is corrected

Beech - 05 LLY CC/SB 4x4
12.31@108.57 On stock turbo and fuel system

Thanks to,
Big Dipper, Efilive, Calvert, Precession Converters, Nick@Duramaxtuner, Eaton, Pureflow, and Falken
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post #7 of 11 (permalink) Old 08-11-2010, 05:25 AM
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took mine apart and ordered new one from merchant automotive, they were great.

03 GMC 2500hd crew cab 4x4
5" exhaust
AFE intake
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post #8 of 11 (permalink) Old 08-16-2010, 01:26 PM
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ive got an 07 classic and it went while it was still under warranty but i was wondering if they just put the old one back in and i still need to do this or if they would have put one in that wouldn't do it again any input thanks,
they replaced the whole tcase

2007 Classic Crew Cab 3500, AEM Brute Intake, Edge Evo, Straight piped :rockin
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post #9 of 11 (permalink) Old 08-16-2010, 01:47 PM
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mine was on it way out... luckily they found the issue and did the pump upgrade when the trans was built.

03LB7ECSBLS 95K Miles
12.27 @ 109.99
614 @ 1122
S475, Duramaxtuner.com, OUO Traction bars!! M/A Trans, AD 100, LML Manifold, 2/4 Drop, 34" Nittos!!
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post #10 of 11 (permalink) Old 08-19-2010, 08:40 AM
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do you have to drop the t-case to do this or just take off back housing?

2005 LLY 4x4 Crew Cab Short Box LS
Edge Juice
4" Turbo Back Exhaust
FPRV Shimmed
EGR Block Off
PCV Re-route
Boost Controller
BFG 265/75/16
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