mr.vls

If you have factory HID headlights on your Envoy/Bravada and the bulb and ballast go out you find out real quick that the only available replacements are from GM and you have to buy a new ballast/HID Bulb because of design change. The cost from GM is over $1,000 dollars for the set. If you want to keep your factory HID system I have a mucn lower cost alternative and still be OEM equipment. I have purchased factory Bulb/Ballast to keep my GMC Diamond Edition factory HID lights operational but will never again. Below is what I purchased (Mostly From Ebay)

1. Philips D1S Bulb Xenstart ($50.00 ea) Ebay. 2 ea
2. Philips Xenstart ballast (Cadilac <NOBR style="FONT-FAMILY: inherit; COLOR: darkgreen; FONT-SIZE: 100%; FONT-WEIGHT: normal" id=itxt_nobr_26_0>XLR</NOBR>) Same Ballast as what you get from GM. (Price Varies) 2 ea
3. Pair of D1S Bulb Holders. ($30.00)
4. Pair of D1S Cables 49CM (SUV Lights.com) $75.00 for a pair plus shipping

Note: The only difference with the ballast assy. from GM/Ebay is that GM provides an adapter plate that will mount the ballast using the same mountin screw locations as the original and provides a short extension for the wiring harness. Part number/Spec for the ballast is the same.

The key is mounting the D1S bulb holders to the back of the headlight assemblies without damaging or modifing the headllight assy. I made a right left adapter from piece of sheet metal. The ballast can be mounted in the same location as the original. PIC's to follow later today.
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1989 S15 Jimmy (DD) with 415K Miles, GM Factory Rebuilt Engine/Trans. New Paint, Headliner, New Suspension Bushings, Eddlebrock Waterpump/Shocks, Adj. Fuel Pressure Regulator and in line Fuel Gage, Injector Spacer, K&N Air Filter, Stock Exhaust, Michalin X-Radial Tires (215/70) Stock Rally Rims, Pioneer Head Unit, IPOD Adapter, Pioneer 4X6 Plates in the front, Pioneer 6X9 5 way sp Rear, 8" Clarion enclosed amp & supwoofer, 10 Disk CD Player. ABS Headliner, Original Owner.
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mr.vls

Below are pics of the GM OEM replacement bulb, ballast with mounting plate and adapter plug. Using a ballast of off ebay you would not get the mounting plate or the plug adapter. But the ballasts are exactly the same ballast. This bulb and ballast is over $1000.00 from GM. You can get buy with around $900.00 if you buy the complete headlight assembly that includes bulb and ballast. I can not figure why it is less expensive to buy the complete assy then just the replacement bulb/ballasst.
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