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Differences between Silverado 1500HD & 2500HD

Silveradofreak

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Silveradofreak New Member

Silveradofreak

Posted
Posted

hello,

I just put an ad to find a Silverado 4x4 crew cab to tow my wooden boat. The weight of it with the trailer will be around 8 500 pounds.

I am looking for a 2500HD with a duramax/Allison combo.

But I was thinking that may be a 1500 HD with the same engine.gearbox will do the job. So what do you think ?

Thank you for your help...

Jacky :D

taco Enthusiast

taco

Posted
Posted
Oh, I remembered another one.  The 15ooHD comes with 3.73 gears only.  You can get 4.10s in the 2500HD

 

 

 

 

 

Not True - just bought a 2004 2500 GMC (which is the same as a 2005 1500HD) with 4.10s. Go to the GMC website it is an option for the 2005's.

ronterry Enthusiast

ronterry

Posted
Posted

Yeap, RPO-GT5(4.10 Gears) came with my '03 1500HD.

 

I would expect the rear end also to be tougher on the 2500HD, but dang my 1500HD came with a 14 bolt, & a 4L80E!!!

The 2500HD's available option Duramax would help towing cause of it's lower torque curve & tons more torque. Horsepower is about the same between the 6.0L Vortec(1500HD) & 6.6L Duramax(2500HD-3500).

 

Ron

BBSilverado Enthusiast

BBSilverado

Posted
Posted

there are 3 different 14 bolt rears:

9.5"

10.5"

11.5"

the 1500HD's comes with the 9.5"

The 2500HD's have the larger ring gears, a taller frame, larger spindles and ball joints.

Jacqson Enthusiast

Jacqson

Posted
Posted
there are 3 different 14 bolt rears:

9.5"

10.5"

11.5"

the 1500HD's comes with the 9.5"

The 2500HD's have the larger ring gears, a taller frame, larger spindles and ball joints.

 

 

 

 

Actually, All 8600 lb GVW 1500HD & 2500 trucks built after 9/2000 all use the same front end components as the HD and 3500 series. The front suspension components of all these trucks except for the torsion bar rear cross member and torsion bar torque ratings(GK and GL) are all the same. :D

Colorado Kid Enthusiast

Colorado Kid

Posted
Posted

RPO code for Allison 5-speed Automatic is M74. You probably won't find a D-max with any other tranny because the "take" rate for the Allison si over 97% (meaning less than 3% of D-max trucks have the ZF 6 speed manual trans.)

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