I have already broken a side gear in the Spicer clutch diff in my 8 3/4. All it is is peppy 6.1 and a 6spd in my 72 Dart. The S60 housings are lighter than factory 60 housings. Im thinking a Dana is in my future with the big Ford ends for the big non adjustable bearing. Cornering is harder on stuff than you think. After this year I hope to find a buyer for my 8 3/4.
Are those new side gears or old factory original ones?
Broken originals, I got it used and it had a broken cross shaft but the gears looked good so I put in a new cross and new clutches. Now it has all new guts with the same fresh clutches. I am hard on her, I can do a real good Dick Landy impression minus the cigar. I am pretty sure it would grenade if it ever dead hooks. Car weighs 3700 with driver.
