This kit is to run a 15x12 wheel with a 4" backspacing.
Axle bolt pattern 5x4.75
4" backspace wheels required
 
This is the same axle kit we run on our race trucks making 2500 rwhp with the 8.8 , spool, and 35 spline axel setup
 
Will require to cut the factory axle tubes 4.5" (WILL NEED TO VERIFY YOURSELF AS WELL)
 
Kit includes (8.8 Diff)
35 spline forges axles (9.75" DIFF/ 34 SPLINE AXLES)
Strange spool with bearings (9.75" DIFF/ EATON TRUETRAC)
9" ends
T bolts
Brackets for calipers
Willwood drag brake kit
Brake lines
All necessary hardware 
 
FOR 9.75" DIFFS U WILL NEED TO RUN A EATON TRUTRAC WITH 34 SPLINE FORGED AXLES THE REST OF THE KIT REMAINS THE SAME
 
Contact us for any questions or gear kits needed with axle kit.