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  1. MopaR&D

    Sachs shocks on an A-body?

    I noticed Sachs has recently come up as another option for cheap shocks besides Monroe and Gabriel. I have a set of Gabriels all around on my 70 Duster now but the fronts rode overly stiff at first then blew out within a few months. I've run Monroes before but they were overly soft and also...
  2. MopaR&D

    Time to "upgrade" to Saginaw pump?

    After getting my Duster running again after sitting for 2 years I noticed the P/S pump (Federal) was leaking quite a bit, even more than it used to. Well today I went for a drive and the pressure line blew off the pump at the fitting; metal part of the hose had broken right at the flare...
  3. MopaR&D

    Adjustable strut rods post-install thoughts

    First I think everyone should get these :D... I have a '70 Duster with poly LCA bushings and greasable pins, boxed LCAs, offset UCA bushings, and 1" T-bars. With the factory strut rods the lower arms were being visibly pushed back and the car had a sloppy feel in the front with a very annoying...
  4. MopaR&D

    Best next suspension upgrade?

    Since I got my '70 Duster back in 2007 my plan has been to build it into a pro-touring-esque road racing machine. When I swapped in a built 360 I pulled the whole front end and put in 1" T-bars as replacement, huge difference from the stock 318 bars obviously. I also added leaves to the rear...
  5. MopaR&D

    Effect of raising rear of car?

    I'm wondering from a general theory perspective how raising the back of older RWD cars makes them handle and accelerate differently. I know it improves aerodynamics but I don't understand how it improves launch or traction i.e. on drag cars with the back end all jacked up. Can someone explain...
  6. MopaR&D

    Cutting strut rod bushings for correct geometry?

    I read an article on a site detailing a road-racing '68 340 Barracuda about how most replacement strut rod bushings are too thick and push the strut rod back, putting strain on the lower control arm and reducing available caster. I want to cut mine and rearrange them so they work at the right...
  7. MopaR&D

    Bilstein RCDs from Hotchkis, other stuff

    I haven't seen any threads about it yet so I figured I'd throw it out there, Hotchkis Sport Suspension now has a line of A-body Mopar suspension upgrade parts including Bilstein RCD shocks. Here's a link to the shocks, and you can navigate to their other products...
  8. MopaR&D

    A-body chassis dynamics, handling

    I was wondering about some general handling topics in relation to our beloved A-bodies. Now I almost always see guys building road-race Barracudas (64-69), with one exception being the Mopar Action "Green Brick" '70 Valiant. Is there a particular reason for this? Also, it seems like Dusters...
  9. MopaR&D

    Poorly designed sway bar mounts?

    After rebuilding the front end on my '70 Duster I installed a 1-1/8" front sway bar from Addco. It took some work, but I finally got it hooked up and mounted to the K-frame. However, my end-link "bolts" point forward instead of straight down, and when I bounce the car while looking at the...
  10. MopaR&D

    Lowering problems?

    I recently rebuilt the front end on my '70 318 Duster and the first thing I did when I got the alignment done was I lowered the front end maybe an inch or so by having the torsion bars cranked down. It sat nicely, although now my bump stops were very close to hitting the chassis. I cut off...
  11. MopaR&D

    Lower ball joint stud STUCK

    I'm rebuilding my front-end and I can't get the damn lower ball joint stud out of the lower control arm (driver's side). I got it out fine on the passenger's side, but this thing just won't budge. I've gone as far as putting the control arm in a vise and hitting the stud with a 10-lb. sledge...
  12. MopaR&D

    '70 Duster front-end rebuild + steering box

    Hey guys, my '70 Duster 318 has been a bit scary on the highway lately. It sways from side to side by itself, and I have to constantly correct the car (making sure not to overcorrect it or I might be in a bit of a pickle!). I tried playing around with the adjusting screw on my steering box and...
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