I know the NV 241 comes in two different configurations, the DLD and the DHD. Mine is a 1996 DHD so it's prior to the 1997 increase in shaft size (output rear). Are the DLD and DHD shafts the same size prior to 1997? I haven't been able to find a site that specifies diameters other than Geno's which shows the DLD seal size vs. the 1997 and up DHD seal size. Thanks!