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Module Missing OE Label Replacement Option
Module Missing OE Label Replacement Option

Module Missing OE Label Replacement Option

Your Price: $125.00
In Stock.
Part ID:missing
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Choose Options

Ordering Reason
Module Type
89-91 DRAC
92-93 DRAC
94-Up VSSB
Core Charge
Vehicle Identification
Calibration Details help
This missing label product page is to address a specific replacement strategy for the style of DRAC and VSSB module that we support when the unit or label data is missing. To start we only support the module type used in Chevy and GM light truck models. Depending on how your found this page you may not have seen our main DRAC page that has a general application list of modules, this page is available linked here. It is important as some modules other than the type we support on this website do not have a label from factory. These modules include applications from Medium Duty trucks like C4500 and C5500 Chevy and GMC chassis that we do not service. Another module combination that comes up that also does not have a label is from Chevy and GM Car variants used in the late 80's and mid-90's, we do not support this module type either. Make sure the module product's case and connector looks like the design we have pictured on all our products, if not, then we don't support it.

Have a Chevy and GM light truck type module?

Is the Module missing completely? Is Module label missing or unreadable? If you are looking for a replacement DRAC VSSB module and the factory module or module's label is missing, this is not a problem. This page provides the solution for that replacement. Please note that on missing units that you must verify the module is actually missing (find the connector) as opposed to a vehicle model that simply does not have a unit. Due to varying selections of modules the factory could have used we find it best to create a new replacement that matches your vehicles current configuration (even if the tire size has changed from factory). Replacement modules are sold as calibrated modules based on Gear Ratio and Tire Size.

Module Type

Select the module type that best matches the year model of the vehicle the replacement module is going into. We will compare this selection to the additional information provided such as the vehicle details and provide what is correct. There are years that different type units were used and we are aware of those crossover years and know what is compatible, don't worry too much about this selection being an issue, leave that to us.

Gear Ratio

To find your vehicle's Rear End (differential) gear ratio, the RPO codes list in your glove box is the easiest way. This is the sticker inside the box with a lot of 3-character codes. Find the gear code, this is typically GU4 (3.08) GU6 (3.42) GT4 (3.73) and GT5 (4.10) being the most common. Another method, you can call a GM Dealer's service department and provide them with the last-eight digits of your VIN and they can tell you the factory build gear ratio.

Tire Size

Check the current tire size on the vehicle. The absolutely preferred tire size measurement will be to use the P-Metric size on the sidewall. For example: 245/75 R16, please do not provide an estimated tire size diameter when a P-Metric or true size (like 33x12.5 R15) is available as this greatly affects accuracy of calibration.