This rear end is fully assembled and ships in a crate. 
 
This rear end is designed to work with factory drum brake from a 10 bolt or 12 bolt. 
 
1968-1972 A-Body Chevelle, El Camino, Malibu, and Monte Carlo
Stock width 61 1/8" wheel mounting surface to wheel mounting surface
Upper and lower trailing arm brackets are welded on housing
Moser Engineering 12 Bolt - USA made casting
3" tubes / 1/4" wall - seamless DOM
30 spline Moser Engineering c-clip style axles
Eaton clutch posi
Choice of gear ratio
1310 series yoke
Black rear steel cover
Wheel bearings and seals included 
5 x 4 3/4 bolt pattern 
Chevy c-clip housing ends installed, common 2 3/4" brake offset, 2.771" hub register to fit factory drum brakes
 
12 bolt internals are 12 bolt passenger car spec. Axle bearings are common Ford 88128 found at any part store. 
 
If you would like to narrow this rear, do a different powder coat color, use a different bolt pattern, add adjustable coil over mounts to fit your suspension, hold the shipment at your local terminal, we can accommodate your needs. Reach out to us and we will get you a custom quote. 
 
You can expect a 2 day build time. Powder coating adds about 1 week to production. 
 
Sales tax only applies to Indiana residents. 
 
Any questions, leave a note or contact us a 260-301-2424.