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supersub1994 · 10-26-2005, 04:47 PM

I have a 1994 suburban changed from 3.42 to 3.73 gears. Does anyone know how to change the D.R.A.C. buffer myself? I have changed the ECM parameters but the speedo is still off. The 3X3" box (DRAC) behind the glovebox needs to be corrected. Any help is appreciated.

10-26-2005, 04:47 PM	#86
supersub1994 Registered User Status: Offline Join Date: Sep 2005 Member ID: 33624 Pics: My Gallery Location: Texas Age: 37 Posts: 9	Re: Rear End Ratio RPO Codes Here I have a 1994 suburban changed from 3.42 to 3.73 gears. Does anyone know how to change the D.R.A.C. buffer myself? I have changed the ECM parameters but the speedo is still off. The 3X3" box (DRAC) behind the glovebox needs to be corrected. Any help is appreciated.