I have a 35 spline, 4:56 and higher(numerically) Detriot Locker left over from a project. JUST TO BE CLEAR, THIS LOCKER WAS IN A RIG I BOUGHT, ONCE HOME I FOUND 4 OF THE CROSS BOLTS HAD BROKEN/BACKED OUT OF THE LOCKER. THE P.O. DIDN'T KNOW IT AND HAD RUN IT FOR A BIT I GUESS, BECAUSE THOSE BOLTS WERE MOSTLY CHEWED UP AND GONE. Now, that being clearly established, I replaced the bolts and ran this locker for the next year, probably about 8 trips. There are marks on it, spots where the old bolts ground against it and a few small chunks missing, but, It never gave me any problems and worked just like it should have. Now I have changed gears and ended up getting a really good deal on a new locker, so I put that one in with the re-gear. $275.00 Location is Siloam Springs, AR, I will ship on your dime. call or text if thats better 479 79o 7nine6seven, thx, Stan Pics coming shortly.