Looking for help here, Am thinking about swapping out my 208 case for a 241 case. The 241 case is out of an 89 truck, so it has the mechanical speedo gear, which will match my 87. Is this a true direct bolt in swap? I mean, no driveshaft length changes, no adapter differences, shift linkage differences, etc?? Basically unbolt the 208, bolt in the 241 and plug the speedo cable in and go? Thanks for any help - and if it isn't a direct swap, what needs to be done to accomplish it?