What's the correct part (#) for the fastback trunk lock cylinder? (Page 2/2) Vintage-Nut MAR 15, 09:59 AM BTW: When searching for "Strattec Part Search" on the internet... The only Strattec Fiero Trunk/Deck Lock offered is #700508 for the "base" model with two mounting holes. https://aftermarket.strattec.com/product-finder RockAuto shows the same Trunk/Deck Lock options on a V6 as Parts Geek has. In this thread: 1986 GT Deck Lid Lock Replacement? by jsheck52 https://www.fiero.nl/forum/Forum2/HTML/139030.html quote 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? quote 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..... Cliff Pennock MAR 29, 11:09 AM 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. Vintage-Nut MAR 29, 01:48 PM SUCCESS - Awesome!