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  1. zac_F71

    Just bought everything for 3.73 gears

    Hey guys I bought everything to swap my 3.23's to 3.73's mostly based on suggestions from a few fella's on here - so I want to hear from guys that run 3.73's or 3.91's even.. will I be able to drive the car on the highway, what are your cruising rpm's, what tire size are you running? 8 3/4...
  2. zac_F71

    B Body 8 3/4 in 71 Demon

    Hey guys looking to put a uncut 69 Road Runner 8 3/4 axle in my 71 Demon - what back spacer wheels are needed and has anyone every done it? Parts I have - 69 RR housing 68 Cuda 3.23SG 3rd member (probably change gears to 3.73/3.91) 68 Charger stock axles 15x8 w/ 5.5" backspace Weld Prostars...
  3. zac_F71

    School me on 8 3/4's!

    I have a 68 Road Runner housing, 68/69 741 case, and 68-70 B body axles Do I need to use shims to set the axle depth or whatever it's called? the housing has a TON of shims on each side flange.. Also I read the center section is sealed from the outer axle bearings and they require grease? Is...
  4. zac_F71

    MP SS leafs hanger bolt

    I have offset hangers that require the use of a 5/8" bolt does anyone know where I can get a pair of the bolts? Thanks
  5. zac_F71

    7.25" rear axle lube

    From what it says in my 68 Dodge service manual- the 7 1/4 only takes 1 qt (2 pints) of fluid? is this true? seems like not enough to me can anyone confirm this for me?
  6. zac_F71

    driveshaft questions

    So I am wondering about my driveshaft - more so if I'll be able to use it - going from a 225 6/904/7.25 to 383/727/8 3/4 - I put new u joints in the stock shaft (I realize I'll need a 727 trans yoke) The motor is going to be 95% stock so it should handle the power but will the length/ u joint...
  7. zac_F71

    8 3/4 pinion angle

    I have a 68 B body 8 3/4 that I will be having new perches welded on at 43" center to center- the pinion angle is important I know but BUT what degree should I have the welder shoot for??
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