Duramax Diesels Forum Truck of the Week
Old 07-06-2018, 01:09 PM
blazerboy72 blazerboy72 is offline
Join Date: Aug 2011
Posts: 2
Default 03 h2 with lbz. Transfer case ?

I'm putting a LBZ in my 03 h2. I think I have everything figured out except for the transfer case. Does anyone know a way to retain the hummers AWD? I know duraburb did it but I haven't been able to figure out how. I know how to convert to 2wd/4wd but I would rather retain the original system if I can.
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Old 07-06-2018, 04:45 PM
LCAC_Man LCAC_Man is offline
Join Date: Aug 2017
Posts: 66

I can't say I've looked specifically into this but I'd imagine you could swap the 29spline input from the NP263xhd into an NP246, you'd probably have to do some legwork on bearing sizing and engagement depth..
Len Barron
2000 Express 155"wb Passenger Hightop
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Old 07-06-2018, 06:39 PM
CarolinaHD CarolinaHD is offline
Join Date: Feb 2011
Location: Cabarrus, NC
Posts: 900


2003 C&C LB7/ZF6
276,000 miles
LBZ/ZF6/4x4 Conversion

2006 LBZ CCSB 4x4
EFI Live
166,000 miles
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Old 07-07-2018, 12:01 AM
blazerboy72 blazerboy72 is offline
Join Date: Aug 2011
Posts: 2

The hummer uses a Borg Warner 4484 case but I am looking into something along those lines if I can find an input shaft that will fit.

Last edited by blazerboy72; 07-07-2018 at 02:54 AM.
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