72 skylark upgrades

Discussion in 'The whoa and the sway.' started by cruzn57, Sep 20, 2018.

  1. cruzn57

    cruzn57 cruzn57

    bought this last week,
    wasted no time in starting up grades,
    ordered disc conversion, tubular A arms, pwr brake assy.
    just did the rear brakes, ,shoes, wheel cyl, spring kits.
    now doing the front .
    was told it had a 430 in it, but surprised when found a 2004r trans,
    couple pics........ 72 buick2.jpg DSC07275.JPG DSC07269.JPG DSC07274.JPG DSC07277.JPG DSC07278.JPG
     
  2. knucklebusted

    knucklebusted Well-Known Member

    Are you using tall ball joints? Those will improve your front geometry a lot.

    Also a Trans Am 1.25" front sway bar will really help it stay flat to the road.
     
  3. cruzn57

    cruzn57 cruzn57

    no, but I see them in my future,
    car came missing some stuff, drivable, but lacking some items.
    I have a stock Grand national sway bar, ,and couple other,s I have no idea where they came from, LOL
    its a project, so no time frame, but anxious to get it back on the ground,
    thanks for the tips,
     
  4. knucklebusted

    knucklebusted Well-Known Member

    I'm not sure a GN bar will fit but it can't hurt to try it.

    Polyurethane swaybar bushings will also tighten up the chassis. You can make these old cars handle pretty good with a little judicious tweaking.

    As much positive caster and about -1° caster will really help.
     
  5. cruzn57

    cruzn57 cruzn57

    while I'm at , the taller Ball joint is no problem,
    can you explain the benefits of it?
    seems like it would place the upper A arm higher,
    where are they available?
     
  6. knucklebusted

    knucklebusted Well-Known Member

    Taller ball joints make the spindle effectively taller. A taller spindle raises the upper pivot of the ball joint and increases the camber gain on compression. Add that to your tubular control arms additional positive caster and you should be well on your way.

    From the factory, these cars roll the outer tire in a turn into an outer edge scrubbing, understeering pig. With these upgrades, it should be much nicer. Mine plant the outside tire like a motorcycle and I've stopped wearing the outer edges of my tires out.
     
  7. cruzn57

    cruzn57 cruzn57

    SOLD! thanks for the info,
    my dirt track racing buddy, told me he can get them in .500, ,750, 1.00 in taller ball joints,

    any benefit to 1.00 in?
     
  8. knucklebusted

    knucklebusted Well-Known Member

    I have the .5" taller in both of my cars and it works. Unless you are going to autocross, I'd think the differences would be minimal. I'm using ProForged tall upper ball joints in mine and they are factory replacement types. I had some upper arms that used the Howe stock car racing tall ball joints. They will not fit most stock or stock replacement arms due to the larger diameter size of their main body.

    Here's what I used: https://www.summitracing.com/parts/pof-101-10016
     
  9. cruzn57

    cruzn57 cruzn57

    got both sides done, (waiting for banjo bolts) changed wheels, 20's are not my style,
    now onto the next part of the project, 72-6.jpg 72-9.jpg
     
  10. knucklebusted

    knucklebusted Well-Known Member

    Paint those tie rod ends. Just kidding, looks like you have made good progress.
     
  11. cruzn57

    cruzn57 cruzn57

    all new steering parts are due tomorrow,
    Yes, I agree, looks like crap,
     
  12. knucklebusted

    knucklebusted Well-Known Member

    I'd be interested in hearing what your final build list was and the results you got.
     
  13. cruzn57

    cruzn57 cruzn57

    not sure I want to see all the parts (cost) in this build, LOL......
    my 57 chevy is a 35+ yrs build, and probably could of bought a house for what I have in it!

    will be boxing rear control arms, next week, (zero $)
    really need to change the rear gears (2.56) ( in OD final gear is 1.76!)
    thinking 3.08 , as this is a freeway flyer,
    dropped off the seats yesterday, to be made into something dazzling! ( hopefully)

    thanks for the interest.
     
  14. knucklebusted

    knucklebusted Well-Known Member

    Depending on your tires, your rear gear could go even lower with OD. I have 3.73 rear gears and a 200-4R which makes my final drive about 2.50.
     

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