VSS Speedo Problem

[68 TT]

Originally Posted by pvkj454

It is electronic. I went back and looked at the eBay listing. the cluster is 90-91 EFI Suburban 1500.

The transfer case came out of a EFI Blazer.

The early TBI rigs used a cable driven speedo with an optical VSS unit mounted to the back of the speedo head. If your Blazer transfer case has a VSS output it is the later style that came with an electronic speeometer. From what you are saying you have the later style with a VSS.

You will either need an ECM & DRAC to run the speedo you have with the NP241 you have or you can simplify things and switch to a cable speedo output transfer case and cable driven speedo cluster.

The electronic cluster is worth far more than the cable driven one so you should be able to sell it to a guy doing an LS swap pretty easily and cover the cost of getting another cluster.

Not sure you can swap out the VSS parts on your NP241C for cable driven speedo parts from an NP208 but it might be possible. I know they share some internal parts. A little research will be needed here unless you just want to find another transfer case entirely.