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Chevy II Renovation, Part II - 1966 Chevy Nova Rear Suspension

Completing our Box Nova Heidt's Suspension Transformation

Photography by John Nelson
  • Rear Subframe Swap Rearend Installed
    After giving the gear carrier a coat of red paint, the four-link setup, coilovers, and beefy 9-inch rear were all bolted into place. The connectors have been final-welded and painted, while the under-side of the car was treated with rubberized undercarriage coating.
    Rear Subframe Swap Rearend Installed
    After giving the gear carrier a coat of red paint, the four-link setup, coilovers, and bee
  • Rear Subframe Swap Panhard Bar Installed
    Before proceeding, we also put in our adjustable Panhard bar, which enabled us to center our rear wheels and properly align our new diff. This bar is central to the new, user-friendly handling manners this Nova now displays.
    Rear Subframe Swap Panhard Bar Installed
    Before proceeding, we also put in our adjustable Panhard bar, which enabled us to center o
  • Rear Subframe Swap Wilwood Brake Kit
    Installing a slick new set of Wilwood disc binders was the next item on our agenda. The polished calipers with drilled and slotted rotors match the front binders we installed in Part I.
    Rear Subframe Swap Wilwood Brake Kit
    Installing a slick new set of Wilwood disc binders was the next item on our agenda. The po
  • Rear Subframe Swap Parking Brake
    After the mounting studs were placed in the axle tubes, the drum-in-rotor parking brakes were put in place. The backing plates contain the caliper mounting tabs, so they must be installed.
    Rear Subframe Swap Parking Brake
    After the mounting studs were placed in the axle tubes, the drum-in-rotor parking brakes w
  • Rear Subframe Swap Axle Retaining Clip
    Moving on, the axles were slid into place after getting a little grease on their splines. The axles' retaining clips went on next, bolted into place through the access holes.
    Rear Subframe Swap Axle Retaining Clip
    Moving on, the axles were slid into place after getting a little grease on their splines.
  • Rear Subframe Swap Brake Install
    The wheel studs on our axles have a non-threaded shoulder, so the rotors must be pulled down onto that area. Johns accomplished this by tightening down some large flat washers and nuts with an impact driver.
    Rear Subframe Swap Brake Install
    The wheel studs on our axles have a non-threaded shoulder, so the rotors must be pulled do
  • Rear Subframe Swap Rear Caliper Alignment
    With the rotor seated on the hubs, the rear calipers were checked for alignment. Shims were added as needed, until the rotors ran right down the middle of the binders. A new frame line was installed, and Johns bent new hard lines to run out to the calipers.
    Rear Subframe Swap Rear Caliper Alignment
    With the rotor seated on the hubs, the rear calipers were checked for alignment. Shims wer
  • Rear Subframe Swap Master Cylinder Proportioning Valve
    Moving back to the front of the Nova, the Wilwood proportioning valve was installed on the inner fender panel, next to the master cylinder. Note the line running up the firewall; the car's original rear brake line ran up the passenger side. Johns ran a line across the car, down the right side, and back to the rear frame fitting. All that remained was to bleed the brakes and set the prop valve.
    Rear Subframe Swap Master Cylinder Proportioning Valve
    Moving back to the front of the Nova, the Wilwood proportioning valve was installed on the
  • Rear Subframe Swap Transmission Cross Member
    Coming into the home stretch, it was time to install the new Heidt's tubular transmission cross-member. These pre-production subframe connectors came without crossmember mounting plates, so fitting and welding was necessary. The brackets were bolted to the crossmember, and the crossmember to the tranny.
    Rear Subframe Swap Transmission Cross Member
    Coming into the home stretch, it was time to install the new Heidt's tubular transmission
  • Rear Subframe Swap Welding Prep
    Once the correct mounting location was established, the plates were shortened on the vertical side to allow welding clearance. Note the chamfered edge, which provides a channel for the weld, creating a stronger bond.
    Rear Subframe Swap Welding Prep
    Once the correct mounting location was established, the plates were shortened on the verti
  • Rear Subframe Swap Cross Member Comparison
    The difference between the stamped-steel factory crossmember and the tubular Heidt's version is striking. With elongated mounting holes on the transmission mounting pad and multiple holes on the crossmember bracket, the Heidt's rear subframe is ready for future transmission swaps.
    Rear Subframe Swap Cross Member Comparison
    The difference between the stamped-steel factory crossmember and the tubular Heidt's versi
  • Rear Subframe Swap Production Pieces
    Here's what the production pieces look like. The tranny crossmember brackets are incorporated into the subframe connectors, making installation much easier. (Photo courtesy of Heidt's)
    Rear Subframe Swap Production Pieces
    Here's what the production pieces look like. The tranny crossmember brackets are incorpora
  • Rear Subframe Swap Driveshaft
    The new rearend was linked to Nova's Turbo 350 with a new driveshaft from Driveline Services. This shaft is 53 inches, 4 longer than the original piece. It uses 1310 U-joints up front to mate with the factory tailshaft, and larger 1350s out back to mate with the 9-inch diff's larger yoke.
    Rear Subframe Swap Driveshaft
    The new rearend was linked to Nova's Turbo 350 with a new driveshaft from Driveline Servic
  • Rear Subframe Swap Finished Product
    And here it is, all finished and ready to hit the test track. Our new Heidt's rear suspension is in place, aligned, and adjusted. The Nova's exhaust system has been adjusted to clear the new tranny crossmember. Also note the brake lines running along the axle tubes. This Chevy II's back end now looks as good as its front. (Photo by Paul Newell)
    Rear Subframe Swap Finished Product
    And here it is, all finished and ready to hit the test track. Our new Heidt's rear suspens
  • Rear Subframe Swap Track Test Rear View
    This old warhorse has been radically transformed. It now hooks and books at the strip, thanks to the solid four-link setup. Track testing proved that handling, stability, and safety have all been hugely improved. (Photo by Nick Licata)
    Rear Subframe Swap Track Test Rear View
    This old warhorse has been radically transformed. It now hooks and books at the strip, tha

Sources

BFGoodrich Tires
www.bfgoodrich.com
or visit your local BFG dealer

Driveline Service
16539-1/2 S. Broadway, Dept. SC
Gardena, CA 90248
(310) 515-2860

Heidt's Hot Rod Shop
111 Kerry Ln., Dept. SC
Wauconda, IL 60084
(800) 841-8188
www.heidts.com

Johns Customz & Performance
20022 S. Normandie Ave., Dept. SC
Torrance, CA 90502
(310) 808-0005
www.johnscoustomz.com

Miller Electric Manufacturing Co.
1635 W. Spencer St., P.O. Box 1079, Dept. SC
Appleton, WI 54912
(920) 734-9821
www.millerwelds.com

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