This is the install video of an Eaton Detroit Truetrac limited slip/posi unit into my 1987 Chevy truck with a 10 bolt 8.5" Rear End using used set of 3.42 gears from a 8898 Chevy truck. The truck has a 5.3L (325ci) Engine and a 4l80e transmission.
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PARTS LIST WITH LINKS:
Please let me know if any of the links don't work and I'll fix them.
Purchasing through my links below don't change the items cost, but it does help support my work here on YouTube.
If you need the parts list for NBS 99present truck, just ask in the comments.

EATON Detroit Truetrac Posi/Limited Slip Differential 10 bolt 8.5" 28 spline axle.
FITMENT: 1972 1989 GM 10 bolt CClip 8.5" 1.20" 28 2.73 & up.
https://www.amazon.com/gp/product/B00...

Differential Side Bearing Shim kit, Richmond. Says Ford on link, but It works; Ford 7.5 in./GM 7.5 in./GM 8.5 in./GM 8.2 in
http://www.amazon.com/gp/product/B000...

All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings.
For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999 (like the ones used on the '87 Chevy truck in this video), the required bearings and races are in the two links below.

Bearings for Eaton Carrier x2 (Older Small Bore):
http://www.amazon.com/gp/product/B000...

Bearing Race for Eaton Carrier x2 (Older Small Bore):
http://www.amazon.com/gp/product/B001...

For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999 to present:

Bearings for Eaton Carrier x2 (Newer Large Bore):
LM603049

Bearing Race for Eaton Carrier x2 (Newer Large Bore):
LM603012

3 qts regular GL5 gear oil
Pick up at local auto parts store. No limited slip additive needed for the Eaton Detroit Truetrac unit.

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IMPORTANT INSTALL SPECS:
Ring Gear Bolts (reverse thread) Torque to 65ft lbs
Side Bearing Cap Bolts Torque to 60ft lbs
Backlash should be .005.009
Pinion preload:
New Bearing 1419in lbs
Used Bearing 68in lbs
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BURNOUT VIDEO KILLING THE TIRES HERE:
   • Big Smokey Burnout '87 Chevy Truck 5....  

Driving video of this truck with the WELDED DIFF doing hard pulls here:
   • 5.3 Swap '87 Chevy Truck WOT Pulls + ...  

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