Help w/ 7 1/4 to 8 3/4 change over

Too bad someone doesnt make a bullet proof 7.25 spider gear..thats what blows, correct? My 7.25 SG looked like a shark bit the ring gear and pinion was barrel smooth, not sure if the spiders survived, or locked up the rear causing the pinion debacle. Lame 2.76 replacement axle was a wet blanket thrown on that 340. Could not break traction with that rear and the 10" tires i had. Cam was too soft down low. Hauled *** on the highway though!