I have a 05 SWB 4X4 Quad cab with 88K miles. I love the truck but I found a super clean 99 SWB ex-cab 4X4 that is every bit as clean as my 05. I am considering buying this truck and selling my 05 because of the thought of having to shell out 3 grand to replace the injectors at some point on the 05. The only problem is the 99 has 4. 10 gears and I would rather have 3. 73s or 3. 54. I pull a 5th wheel but it is not that heavy. If I put factory 17 inch wheels with 285 tires does anyone know how much that would effect my gear ratio since it has factory 16 inch wheels now? Also the truck has 171K is there anything other that the lift pump to worry about on the 99 model? It runs great the transmission shifts good but looks to have the original lift pump.