I have a Z71 Chevrolet 1999 with the 5.3L automatic 4WD.Question:  to get a quote on a rebuilt Chevrolet 8.25 IFS front differential with 4:56 gears installed, shipped to zip ode 32536.Answer:  We can provide the IFS front differential with 4:56 gears, your cost is $1050.00plus $250.00 core deposit.This unit has a 12 month no hassle warranty. Shipping to a commercial address your zip code is $110.00 this includes outbound freight and core return freight. Please allow 7 to 10 day to ship as we don’t stock the 4.56 ratio so we will have to order it in.For more information give Scott a call at 888-824-2012 he can help you.