New member with a question

[Paul83]

My name is Paul and am from the Houston area. I have recently aquired an 83 GMC shortbed with a 305. Not sure if it is a 700r4 or not, but it is an automatic overdrive tranny. I also got an 85 chevy cab that had a 3 speed auto in it. The the 3 speed had a 2 wire plug for back up lights. This is going on the 83. The 83 trans had a 4 prong 3 wire connector that plugged in to it. Will the overdrive trans work without the wires being hooked up? I hope the only problem is I won't have reverse lights. I will post pics of the truck sometime tomorrow. Thank you for any answers.