Hy RB55, I'm a little confused by your question, are you or have you just acquired the 261 and 700R4 and you are wondering what you will need to do to install it in your truck? Are the 261 and 700R4 already married? As to the brake master cylinder, if you are contemplating converting to a dual master cylinder, there are kits available to mount them in the stock location. Does your truck currently have an open driveshaft?
