So our steering gears are the same and the end of the u-joint for the steering gear is 3/4" with 36 splines and right above that going towards the fire wall is the actual swivel section and it measures 1.615 inches and I am betting that your factory headache piece is wider than that measured across from your #2 & 3 header tubes towards the inner fender well so it will slip on with ease, you may have take out the 2 bolts that hold your column under the dash so you have a little sliding room, the u-joint length is 3-3/4" long, I don't know if your steering shaft is the same diameter as mine if it is its a 1" round shaft smooth not splined or DD. All that being said you should be able slide it on and tighten the set screws and put 2 bolts back in under the dash, but there is always buts, if your car was originally a manual steering car the only thing more that might have to be done is possibly shorten your shaft some but I don't know that because my Dart was a power steering ca and I added a bushing to lengthen it and oops reminded me that is why I went to 1" diameter on the steering shaft end so you should not have to that, I had to buy 1"-48 spline x 3/4"-36 spline and then used a die grinder and took the splines off to a 1" smooth and only spent around $20.00 on eBay instead of upwards of $83.00 for a Borgeson or a Flaming River etc. over priced ****, but I also have my own powder coating system, so as I am typing my F'n Dart is right behind me so I measured the factory part of the shaft {must of had a sometimers moment) and it is 3/4", and who knows you may have to use a 3/4 ID x 1' OD bushing like me but I didn't spend $30 total and you saw my picture, the only other thing I did was drill and tap for set screws on the steering shaft end as the u-joint coupler only came with one on the steering gear side, well there you have it and I try not to leave anything out when sharing what I did and I think its only about a 3 Beer job. let me know how it goes, Tracey