Christopher Biggers

I have not seen an answer for what the physical differences between the two 6112 part numbers. However, I went ahead and ordered the 47-309524 back in March and may some day receive them. I hear some are finally starting to come in from the nation wide backorder. Has anyone received 6112s recently? When did you order them and who did you order from? My overall build plan for my 2020 RST Duramax is to use the 47-309524 set on the middle clip with the Bilstein control arms and trail boss axels up front. Out back 2" block with 5100s. My original GY Fortitude HTs were shot at 42k so just replaced them with General Grabber ATXs 275/70R18(SL). Eventually when everything is installed, I will get measurements and pictures posted.

Can the pivot bushings be greased without pulling the strut? If so, how do you keep the bolt from turning when loosening/retightening the nut when greasing the pivots?

I am new to the site but have been lurking for a while. I see that Bilstein offers two different part numbers of the 6112 for the T1 Silverado, 47-293557 for non-Trail Boss and 47-309524 for the Trail Boss. Does anyone know if the Trail Boss version is longer to begin with or if it just has higher c-clip ? Do they use the same spring rate? Does anyone know why it doesn't show as being compatible with the Sierra AT4 Duramax? I have a 2020 RST Duramax and am trying to lift 2.5-3" in the front and thought the Trail Boss 6112 on the middle clip would be ideal if there is no obvious compatibility issue. Thanks in advance