Dime Dave Posted August 10, 2009 Report Share Posted August 10, 2009 I have an alloy H190 center section, 3.89 ratio, set-up for a 320 P/U, $200 plus S&H or will trade for a stock 320 center section. This is the later and most common H190 alloy center. This particular center is from a 510 wagon that had the side gears replaced with 320 spline side gears. This is a direct bolt-in to a 320 P/U axle housing to give your pick-up a 3.89:1 final drive ratio, better highway use. A word of caution, this swap may require shortening the driveshaft. The later (520 and newer) H190 alloy centers have an overall length (u-joint flange to housing flange) that is 5/16" longer than the original 320 center. Measurements should be taken to verify that the 320 driveshaft has enough slip joint travel to handle the longer center section. If not, you will need to shorten the driveshaft by the 5/16" to make up for the difference between the 2 housing lengths. Contact: Dave Patten Dunbarton, NH 03046 dwpatten@gsinet.net Link to comment
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