the new CTD tranny are holding up alot better than say mine, in my book the allison blows the 47re and 48re (ctd trannys) away, Ive heard differnt specs on what the allison will hold hp wise but it sounds like 400hp and you need to get in the tranny alil, a nice shift kit will pump it right up, even with the mild mods your doing a shift kit would be a good move. 
__________________ Dads: 99 2500 Ext Cab Longbed 4X4 3.55s CTD, 5'', 47re, BHAF Outerwear Heat Sheild, Turnbuckle Wastgate, Fuel Pressure, Sucnoast Tripple Disk TC with custom vb work.
Mine: 95 Ext Cab SLT, Loaded, 5spd, 3.54s, Leveled 5'' Lift 35'' Toyos, 4'' Straight, Super B 57/66/14, Stage 2 Sticks, 3GSK, #60 Valve Springs, Stage 2 clutch, Custom Intake, Plateless,Boost and EGT on the pillar. |