Join Date: Nov 2008
Location: Beautiful Chester County, PA
can't speak from personal experience on the NAPA part, but I would suspect they are a very good alternative. It doesnt answer you question but when I installed my replacement box, I went to AdvanceAutoParts and ordered one from them. With the BIG35 Discount code I got it for less than $100 and have been happy with it.
Pretty sure the brand they carried at the time was Fenco, but now their site list something different. At the time they showed 2 units for a Caprice, 1 standard and the other for Police Vehicles (9C1) which was the quick ratio and the 1 I bought. But as others have said, be sure to check the amount of travel on the box to confirm what you got.
Also be aware that the Pitman Arm takes some serious Torque numbers. IIRC - it was in the 185 Ft. Pounds range and my Torque Wrench only went to 150.
'95 Caprice SS conversion - Bonny Buckets - 96 Column, Shifter and Console - 3.73 Gear and Herter tune - Z/28 Cluster - Blazer OH Console - Green/Pink bushings - Chromed Impala Wheels - Eibach Springs and Bilstein Shocks - Corvette Engine Dress - the list goes on and still more to do...it never ends.