I want to replace the trunk lock cylinder because I lost the key and the lock wasn't working very well to being with since they tried to break into the trunk and they pretty much destroyed the lock.
But the trunk lock cylinder that's sold by the Fiero Store as well as RockAuto, are for the notchbacks and don't fit...
Then replaced with GM 12398670 Lock Cylinder Kit (Uncoded)
EDIT on eBay USA..... Four GM 20496710 listings Four GM 12398670 listings
BTW - Only ONE listing shows a KEY NOS GM #20496710 CYLINDER LOCK ASSEMBLY https://www.ebay.com/itm/224041301675 ------------------ Original Owner of a Silver '88 GT Under 'Production Refurbishment' @ 136k Miles
[This message has been edited by Vintage-Nut (edited 03-14-2024).]
Cliff, I thought the lock cylinder was the same and the only difference was the length of the rod between the cylinder and latch. Of course, 88's also used a different key blank than earlier years.
jsheck52 said in 11-30-2016 I'm having trouble finding a replacement {GT Deck Lid} lock. It seems that the notch-back deck lid locks are easy to come by, but not the fast-backs'. Anyone have any idea where I could find one or modify any other lock to work?
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viperine: Fastback deck locks are available alone on eBay, with the occasional set popping up once in a while (trunk and 2 door locks with a matched key). Search for those that only fit 86 to 88.
It looks like that you found the correct trunk lock for a fastback, and you don't have many options on the cost.....
I was able to simply replace the old cylinder with the cylinder of the notchback lock. Took a bit of Dremel work to get the old cylinder out, but the new cylinders fits and works perfectly.
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