Originally Posted By csk
I wasted $1200.00 on my 8.3/4 in my Charger, put Drag radials on it & killed the 8 3/4. NEVER will i spend money on 8 3/4 again. got a S60 from DR Diff with the S Trac carrier, it cost more but works AWESOME, I dont know my HP but car is heavy 4050 with me, so far 11.33 @ 121.1 1750 DA


Almost identical experience. I bought a $1300 clutch type sure-grip equipped 742 3rd member for mr 8 3/4 and killed the sure-grip within the first year. Drag radials, sticky track and manual valvebody all conspired to send the rear packing! I did Dr.Diff axles, spool and put ends off an 8 3/4 on a full floater Dana 60 truck rear. It gets abused regularly. Only problem I had was the screw in studs in my Dr.Diff axles were trash and started folding over. Replaced with Strange and all is good!

Don't ignore the driveshaft, either! I finally had to order a 1350 Strange unit to hold up along with u-bolt u-joint yoke instead of the strap type.

Last year my entire summer was spent fixing driveline issues. wrench

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.