The 1996 GMC Sonoma has 5 recalls, the most serious being a manual transmission defect that can cause the rear wheels to lock up without warning while driving, leading to a sudden loss of vehicle control.
A separate brake concern involves the front brake pipe rubbing against the engine oil pan. Over time, that contact wears through the pipe and allows brake fluid to escape during braking, which can noticeably extend stopping distances. On the fuel system side, certain fuel injectors can leak vapor through cracked plastic encapsulant, which poses an emissions concern and raises the risk of fuel vapor escaping into the engine bay. The fifth recall involves the windshield: peeling paint on the windshield opening flange weakens the bond between the glass and the body, meaning the windshield may not stay in place during a collision the way it is required to. Each of these issues is worth checking against your vehicle's VIN, as not every truck in this model year will be affected by all five.