Capabilitiees of my Seirra

[GMC or nothing]

I wonder how it would stand up to other production comperable trucks. I have the 5.3 aka 327 with 326 hp. at the rear wheel. Higher #ft. of torque I can't remember. I have an Allison transmission. Same as put in tractor trailers that are automatic. Eaton diff's. they speak for themselves. how would it do against an F150 and Dodge 1500. The Toyota and Nissan. I got to know but don't know where to find the info. Please help.

 

[Z15]

Sorry to disappoint but the Allison trans was not put behind a 5.3L engine. You have a GM Hydramatic 4sp or 6 sp depending on models and years. The Allison 1000 is only used behind the 8.1L (discontinued) or the Duramax diesel engine and they make no trans that will work with the 5.3L or 6.0L engines.

You don't say what year, model of truck you have.

PS - I have a 2010 Sierra 1500 SLT Z71 All Terrain