Brake booster ????

I have a 91 toy that im b/d i have seen some guys with a smaller booster just wondering what year i need to buy.

i used one off a geo metro. not sure what year. cost bout 25 bux from the junkyard.

The stock booster on my truck is 8" diameter. It will bolt up to your master and firewall, but you will have to lengthen the shaft on the interior side to match what was stock. Its a 79-83 Toy. Also, its not hard to relocate the booster. Thats what I did.