never heard of anyone doin it
but the stock auto allison is pretty good tho
__________________ 2003 Silverado 2500HD 4x4,Ext, LB7, Silver
6inch Black Single,
18inch Rockstars with 285 Nitto Terra Grapplers
Ported MouthPiece,PPE Lift Pump
Autometer Cobalts, K&N Intake, Cognito HD Tie-Rods EFI Live with DSP 2 Switch Tuned by MMLMM SunCoast Stage III
you still would have the allison if you were manual
__________________ 2003 Silverado 2500HD 4x4,Ext, LB7, Silver
6inch Black Single,
18inch Rockstars with 285 Nitto Terra Grapplers
Ported MouthPiece,PPE Lift Pump
Autometer Cobalts, K&N Intake, Cognito HD Tie-Rods EFI Live with DSP 2 Switch Tuned by MMLMM SunCoast Stage III
__________________ 2003 Silverado 2500HD 4x4,Ext, LB7, Silver
6inch Black Single,
18inch Rockstars with 285 Nitto Terra Grapplers
Ported MouthPiece,PPE Lift Pump
Autometer Cobalts, K&N Intake, Cognito HD Tie-Rods EFI Live with DSP 2 Switch Tuned by MMLMM SunCoast Stage III
sorry to tell you
but they did
there hard to find but there out there
__________________ 2003 Silverado 2500HD 4x4,Ext, LB7, Silver
6inch Black Single,
18inch Rockstars with 285 Nitto Terra Grapplers
Ported MouthPiece,PPE Lift Pump
Autometer Cobalts, K&N Intake, Cognito HD Tie-Rods EFI Live with DSP 2 Switch Tuned by MMLMM SunCoast Stage III
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.