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Installed by:Pro Installer
Grand National Rear with 4.10
Installing the gear was easy, adjusting the the gear for the right pattern is pretty long process, there are expensive tools out there that make the job easier but I went with the grease/pattern method...it takes a lot of time but you get the hang of it at the end. ...
richmond 4 10 and posi unit just changed out the whole rearend housing
Went from stock 2.71 to 3.21 gears. Need to recalibrate the speedo next. lol
4.88 rear axle ratio with a mini spool on the stock 8.8 rear end