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If you could find the B4U lower valence that would really set the car off right. Has been a long time since I’ve seen one in even ok condition at the jy. They’re made of the rarest unobtanium on the planet. I bought a brand new one from the dealer in 01’ on clearout from GM they said it was the last one in western Canada at the time. Got it for under 200. Then they told me on the phone that it was lost in transit and offered a refund. I said let’s wait and they called week later, it showed up… or it was there the whole time and they just found it. You might get lucky being you're in the US. If you go to the dealer with your VIN they can print off the build sheet for your exact ride that will list all the options. Ask for the part number for the clip while you’re there. One of the few receipts for my car I do t have so can’t help you out there.

Ahhh, ok, yes, I’ll need to check that out… I saw a tube but thought it might had been for the sunroof, again, thank you so much for info..

Thank you!! Sunroof seal was swollen, so that was probably the issue, it wouldn’t close all the way.. speaking of sunroof… I need a new seal too… another part that discontinued. Only option I have is to source a new glass with a good seal…

Make sure the drain tube is hooked up properly and that it's actually down into the trunk floors drain hole...if it's still there and the rust hasn't made it disappear. This tube takes water from the mast and directs it thru the tube, thru the trunk floor, and onto the ground. Beautiful Turbo! Black is more rare than the Red cars and it having CD is awesome! CD units are rare on any early GP really.

Here’s what the valence looks like on a red TGP. https://bringatrailer.com/listing/1989-pontiac-grand-prix/

You`ll need to make an adapter from a donor instrument cluster and wiring harness. Heres a good thread with a working proto-type for the Cutlass however the Buick shouldnt be much different.

Okay, this conversation is some years old, but I bought a 1988 Buick Regal Limited and also like to swap the instrument cluster to an UB3 full digital cluster. If there is an adapter available, I would like to use that easy plug-and-play option to get it runing. If there's someone out there to help me with this, it would be great.