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Message: <blockquote data-quote="stutaeng" data-source="post: 26862" data-attributes="member: 6175">You may want to look into the 1500 suburban/yukon front suspensions for parts interchangeability into the extended cab. As mentioned, the 1500 SUVs are torsion bar front suspension, even the 2wd. I seem to remember on the older generation of trucks, you need to run CV axle on the hubs? If that's not the case on the GMT800s, then use the 4x4 frame, and leave out the transfer case and front differential. Use the 2wd transmission and stock 2wd driveshaft.I recently replaced the hubs on my 06 Suburban 2500 2wd, and the hubs are the same for the 4x4 and 2wd, so I can at least say on those models, you don't have to run CV axles. They are basically a 4x4 front suspension, but without the transfer case, front driveshaft, front differential and CV axles. These trucks are actually the exception to the rule, where you can convert the 2wd to 4x4, plenty of Duramax guys have done it to their 2500HDs. That's NOT the case on the front coil spring suspension setup.OR:The only factory 1500 extended cab that had torsion bar in a 2wd was the Silverado SS that was made for a year or two....look into that setup...</blockquote>