How do you tell if a 2001 ram 2500 is a 2001.5 model? did 53 blocks affect the 2001.5 models?

 

I believe if it has rear disk brakes, it's a 01.5'

 

Yep, easiest way to tell is rear disc brakes. I belive it was very rare to get a 53 block. I have a 01.5 and I have the 56 block.

 

I have a 2001.5 and I had a 53. Now I am on my second block.

Mike

 

Thats the first i have ever heard of a 53 being in a 2001.5.

 

What's the difference between '01 & '01.5, I never heard of this?

I guess since I have rear discs, mines an 01.5, have to update my signature. I know I don't have the '53' block, its '46' IIRC.

 

BTT...
What's the difference between '01 & '01.5, I never heard of this?

The build sticker on my '01 (or is it '01.5) says 08-00 and I have rear discs. Did they build the "2001" for a few months, then the 2001.5 for the majority of the model year run? What significant changes occured 'midyear'?

 

They started building 2001 trucks in january 2000. 01 or 01.5 is the way people separate drum and rear disc trucks. I believe rear discs started in july or august of 2000. But they are all really 2001 trucks.

 

how do i tell what block I have?

 

They also have different software in the ECM.

 

Have a look at this:

http://www.stamey.info/Truck/Cummins53BlockFAQ.htm

 

have a HO 2001 with 4 wheel discs. Should I bother even looking underneath?

 

i bought my 01 3/4/00 [drums] dont know what block

 

Just looked at my build date on the quad door. Mine was built 11-2000 and has rear disc and the exhaust bolt retainers. NO 53 here!