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  1. Rapid Robert

    pinion angle Q

    63 dart stock car. 360/904 8&3/4 high banked 1/3 mile dirt track. after I get the pinion angle where I want it (going by a utube vid) how many additional degrees downward should I set it to compensate for pinion rise on acceleration? and what is the diameter of the main center thru bolt that...
  2. Rapid Robert

    4.2 lever change

    360 & pretty much stock 904. on the track I'm in 3rd at pretty much a cruise till they drop the green flag. It has been suggested that I go to a 4.2 lever. I will be going in the pan to adj the line psi & I am wondering how involved it is to swap it out. thank you for your time. RR
  3. Rapid Robert

    easy 904 band adjustment Q

    67 up 904. will be pulling the VB & wondering what I should adj the inside band to while I am in there, (snug & how many turn out?). shifts normally up thru the gears then mashed in third gear (if that info helps).thank you for your time. RR
  4. Rapid Robert

    holdown bolt torque pattern for 904 valve body

    I have seen it posted but cant find it anywhere. does anybody know where I should look? thank you for your time. RR
  5. Rapid Robert

    easy 8&3/4 spline count Q

    getting ready to order some Dr Diff axles. it wants to know if for 30 or 35 splines. this is afaik a stock 5:57 gearset. thank you for your time. RR EDIT and would I want to go with green bearings or stock type tapered roller bearings (dirt track stock car, high side loads I'm sure).
  6. Rapid Robert

    which rear end lube?

    circle track 63 dart with 8&3/4 5:57 with welded spiders. I went to O'reillys to return some rented tools (what a gift/much appreciated) & bought a gallon of 75-140 non synthetic gear oil. the manager told me that synthetic would be a better choice as it dissipates heat better & should I stay...
  7. Rapid Robert

    7&1/4 vs 8&3/4 OAL. both BBP

    have a 7&1/4 in a 73 dart & the mag wheels/tires are very close to the outer fender. I would like to swap to an 8&3/4. Are these pretty much the same total width? thank you for your time. RR
  8. Rapid Robert

    Abody SBP 7&1/4 vs 8&3/4 SBP overall length

    is the end to end wheel flange distance pretty much the same for the two? I'm swapping rears & having potential wheel backspace clearance issues from wheel/tire to leaf springs. I am not in a position to measure everything right now. any thoughts? thank you for your time. RR
  9. Rapid Robert

    8&3/4 housing diameter (A body if that matters) needed

    If I cannot find a set of used ubolts I might have to go new & there's tons of em on ebay & & I would want to get the correct ones. Thank you for your time. RR
  10. Rapid Robert

    easy tubing bending Q

    replacing the 2 5/16" tranny cooler lines. can I bend em to a 90 deg angle with a regular tubing bender or do I need to do something extra to keep em from kinking? these are parts house 5 ft lengths with the male fitting on each end. is there an adapter fitting to mate em to the brass fittings...
  11. Rapid Robert

    torque converter how to order

    63 dart 360/904 dirt track stock car. I want better than the OE unit in there now. How should I go about ordering one? Idle rpm? RPM coming off the corners or? thank you for your time. and what company would you suggest I deal with? RR
  12. Rapid Robert

    which torque converter (904)

    63 dart dirt track stock car. 360/904/7&1/4. has a fairly wild cam in it (don't have the specs). stock TC is still in there. I'm thinking I need to upgrade. what company should I contact & what info should I have ready for them & will they have me fill out a questionaire? thank you for your time.
  13. Rapid Robert

    shortening axle splines

    8&3/4 axles, the splined end needs to be shortened a bit, can you use a chop saw then some deburring? thank you for your time. RR
  14. Rapid Robert

    pinion angle

    63 dart 360/904/7&14 circle track. I am raising the eng/trans so I can run good flowing magnum ex manifolds. what is the max degrees offset I can have on the pinion angle? I know I want them within .5 degrees (iirc) of each other & offset parallel. thank you for your time. RR
  15. Rapid Robert

    easy 8&3/4 axle length ?

    are both pass/dr side axles the same length? thank you for your time. RR
  16. Rapid Robert

    37 or 45 degree flare?

    making new trans cooler lines. the line(s) that meets the brass fittings on the side of the trans. thank you for your time. RR
  17. Rapid Robert

    ujoint smoothness Q

    63 dart dirt track stock car 360/904/7&1/4 (welded spiders). I had the shaft cut/balanced & the front yoke was smooth in one direction/not so smooth in the other. the rear was not smooth. I took it back & they worked on it but it still seems way too tight compared to the smooth movement I have...
  18. Rapid Robert

    Manual Valve Body, best one to get?

    circle track A body 360/904. which company should I call? thank you for your time.
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