How to GRM a 5.3 trailblazer into a trailblazer SS?

newrider3 said:

Somebeach (Forum Supporter) said:

 

Are the transfer cases the same between the AWD SS and the AWD 5.3's? 

I don't know all the GM alphabet soup option codes, but the short answer is no. The SS uses a true AWD transfer case with a Torsen type center diff; while the other models have different options including a single speed full time 4wd case (computer controlled front drive engagement), and a case with selectable 2wd/4-auto/4-hi/4-low. Apparently there is another true AWD case that would work well in a swap, optional in certain Tahoe/Suburban/Yukon and Denali; but I don't know the RPO for that one off the top of my head either.

I think you are thinking of the GMT800 AWD system. Unusual in Tahoes, but more common in Denalis and Escalades I believe. Easy way to tell is the the 4wd system buttons to the left on the steering wheel. Either you have the selectable modes, or you have no buttons at all I believe. Maybe just one to lock the center diff. The AWD doesn't have low range. I want to say it's also the system used in the Silverado SS of that body style.

By the way, GMT400 full size stuff is about the same size as the trailblazer. Here's my Limited vs. a TBSS. I was really surprsed how close they were, especially becuase the GMT400 feels a lot bigger inside. Yeah, it's an older and more archaic truck, but it's also a lot easier to work on and seems to be a happy medium of enough creature comforts without being over the top for a homegamer.

In reply to gearheadE30 :

I always wanted a Limited. THose are sexy trucks.

In reply to gearheadE30 :

I never would have thought those trucks were the same size. Thanks for that picture. Man that suburban looks awesome. It is a suburban right? 

Thanks! It's a Tahoe, but ultimately the main difference between the Tahoe and the Suburban is ~14" of extra length. GM didn't make any special edition Suburbans of that generation, but you could get the Suburban as a 2500, with a big block, or with a diesel, and none of those were available in the Tahoe. It really is interesting to see how much vehicles have grown over the years; I didn't realize they were the same size either until I had the opportunity to take that picture.

In reply to gearheadE30 :

Some can see the picture, but I can't for some reason.