Powertrain/Axles Tech

Tech Question Matt Kirby, Wacheeta, KS, 1971 Dodge Charger 440 I have a spare 8 3/4" axle, 489 pumpkin to replace myCharger's stock 8.25". I am planning a pretty unusual engine swap withexpected torque at about 700 ft-lb.…

Tech Question todd sexton, Saint Paul, MN, 1975 Dodge Dart 225 My 1975 slant-6 Dart has a 7.25 rear axle (which is not uncommon,apparently). I'm switching to disc brakes up front, which means the 4.5"bolt pattern for the front…

Tech Question BURTON GOFF, ALBRIGHT, WV, 88 DODGE DAKOTA 366 I have a 88 short bed Dakota with a 360, 727, and 4.10 8-3/4. I have hadmultiple trans shops work on the trans and can not raise WOT shift points toabove 4000 RPM. The…

Tech Question Ron Gaul, Longmont, CO, 1971 Dodge Challenger 340 I was told when replacing the driveshaft in a 1971Challenger, that I would have to reset the pinon preload. Is this true, andif so, why? Thank you, Ron Ron,…

Tech Question rick mullins, blue ridge, VA, 1970 Dodge Dart Swinger 340 ive been reading your columns since I was a kid and I've learned alot from your responses, but now I need advice. The car is a 340, 727, 8-3/4 sure grip 3.23…

Tech Question Chris Jowett, Coquitlam, BC, Canada, 1970 Coronet Superbee 383 Hi I was thinking about replacing the old worn out 383 inmy SuperBee for a Hemi crate motor, probably the 426 crate Hemi from Mopar. The superbee has a 3…

Tech Question Paul Wade II, North Charleston, SC, 1984 Dodge D-100 318 I am having a problem with my speedometer cable. I replaced the original cable with a new one and one month later the cable twisted in the cover. I would like…

Tech Question brian copley, milton, WV, 84 dodge ramcharger 4x4 318 First, your mag is the only Mopar mag out there with goodtech, humor, and great features. Now the question: Maybe I am ignorant of what's going on here, but on my…

Tech Question Paul Nemeth, Lake Worth, FL, 1963 Dodge Polara 383 The car currently has the 8-3/4" tapered-shaft rear axlesetup. Can the axle shafts be replaced with the newer flanged versions ( '65and up) or do I have to replace…

Tech Question John Bosnoian, Madison, MS, 1973 Plymouth Cuda 340 I have a '73 'Cuda 340 with a 727 trans. and 3:55 gearsthat I did verify Before I rebuilt my transmission I was turning 3500RPM at55MPH. I did a full rebuild with new…