I have an 84 FXRT with a primary and transmission housing from a '90 FXR. The dipstick for the transmission oil is broken off of the threaded cap, so I got another to replace it. As I put the new one in I discovered why the old one was probably broken. The new dipstick will not fit as the clutch cable is centered in the opening for the dipstick and cap. I can put it in at an angle, but no way I can screw the cap in at that angle. Not knowing the full history of what parts are on the bike, any suggestion what I need to do to get a dipstick in the transmission? I currently check transmission oil level with a phillips screwdriver.