As some of you know, I have a 78 D200. It has a 318 V8, 727 tranny, and a FF D60 rear axle with 4.10 gears..

I am wondering if the tranny is a lockup or non-lockup? I know how to tell if I pull it out but I did not want to have to go through all of that. Is there any other way to tell? I could do it when driving it and feel how many times it shifts but the truck is parked for the time being.

The reason I am asking is because I am thinking about installing a B&M shift kit designed for RV/towing since I'm goin to use it to tow my j10 with. While I'm not driving it and have to drop the pan, I figured I could install the shift kit. Also the tranny shifts fine, there is no delay or slippage, or hard shifting.

 

I'd rather have a non-lockup tranny but I need to know what is in it now from the factory, either lockup or non-lockup.

I think you might have misunderstood what I was saying.

 

I will look tomorrow or over the weekend and post them up here.