Speedometer swap in a 89

[Demoman91]

I figured I'd have to do some modifications,to make it fit. I'm glad u brought up the ls. I got a 6.0 I'm going to carb, with msd box I'ma set it like I would for my demolition derby. And thinking bout a 4 speed possibly. So I'm glad u brought up the speedometer, very useful to know

 

[AK49BWL]

FWIU your LS VSS is 4000 PPM instead of 2000 PPM in a GMT400.

As long as you're running a cluster from a truck that required the external DRAC (92+), that's fine. I have a 94 Suburban cluster in my 97 with an 0411 PCM, factory L31 350/NV3500, it works perfectly.

With an LS PCM it's possible to tune the input for a 2k or 4k VSS reluctor, so assuming he doesn't replace the transmission with the engine, things should still work out okay.

 

[Leeztruk]

Thanks for that info. That just took some worry away from my swap. Sorry for hijacking the OP's thread.

 

[Denny 1991]

I did a swap from " moonies to needles " on my 1991 K2500. The needles cluster came out of a 1991 SS and I didn't have to change a thing. Check out that thread, lot's of info.