Some parts may by rebuilt by the manufacturer and are sold on an exchange or core basis, if this is the case you will be charged a "core" charge. Core prices are included in the selling price of our parts on the web site and are itemized separately on sales receipts as "core charge". To receive "core charge credit" core and exchange merchandise must be returned to J Body Connection to be returned to the manufacturer for core credit. Certain parts are sold on an "exchange" basis and require an additional core deposit that is fully refundable provided your old part is returned in the original container your new product arrived in and it is in "re-usable" condition. These parts include some steering wheels, valve covers and other items as indicated on the site.

All core returns are handled within the standard return process requiring a RETURN AUTHORIZATION NUMBER (RAN).

The core may only be returned for credit within the first 30 days of receipt of your order. All handling and shipping fees are to be paid for by the customer. Once your core has been verified to meet core standards and has been received by J Body Connection, credit will be issued against the original purchased core only. 

Any cores that do not meet packaging or core standards will not be eligible for credit and will be disposed of after customer notification. The customer will have the option of receiving back his original core only or authorize scraping and disposal of core after this notification. It will be the responsibility of the customer for any freight, disposal, and handling fees incurred by returning unacceptable cores, not to exceed overall core value.

Here is the core standards to able get your full core back
Must have correct serial or GM SKU on the core.
Must have correct application when sending back.

Here is the list of Cores we are taking:

Throttle Bodys
Core price on TBs are $50.00

PCMs/ECUs
Core Price on PCMs/ECUs are all $150.00

Head Lights and Tail Lights
Core Price on Head Lights and Tail Lights are all $75.00-$100.00 depending on application

Drive Shaft/Axle
Core price on Drive Shaft/Axle are $35.00-$80.00 depending on application

Brake Calipers
Core Price on Brake Calipers are $35.00-$80.00 depending on application

Upper Plenum and Lower Plenum
Core Price on Plenums are $125.00

Engine Blocks
Core price on engine blocks are$300.00

On Cylinders Head MUST HAVE these numbers inside of the heads on 4 & 6 cyls before it will be accepted for CORE!!!
Price on heads for Core is $250.00  (click here for the part numbers : http://jbodyconnection.com/article_info.php?articles_id=3)