got a few questions about my suburban

[AKMark]

If they come from a 73-87 truck, they should bolt up, except for a one ton rear axle, those have different spring purch widths. You'd have to cut and reweld to use an axle from a one ton. Also, depending on the axle you will probably need a conversion u-joint on the rear of the driveshaft. Most 14SF and 14FF axles run 1350 U-joints instead of the 1310.