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1. 14 Before welding the tabs you must center the axle and set the pinion angle This must be done at ride height Raise the axle until the is 14 1 2 from center eye to center eye on the Shockwave mounts this is ride height One trick that we use to maintain the settings are to tack weld a 4 spacer between the axle and the frame 15 How do you set the pinion angle Ona single piece shaft you want to set it up where a line drawn through the center of the engine crankshaft or output shaft of the transmission and a line drawn through the center of the pinion are parallel to each other but not the same line A simple way to dorthis is to place a digital angle finder or dial level on the front face of the lower engine pulley or harmonic balancer This will give you a reading that is 90 degrees to the crank or output shaft unless you have real problems with your balancer At the other end you can place the same level or angle finder against the front face of the pinion yoke that is also at 90 degrees to the centerline If you rotate the yoke up or down so both angles match you have perfect alignment Road testing will tell you if you have it right If you accelerate and you get or increase a vibration then the pinion yoke is too HIGH Rotate it downward in small increments of a degree or two until the problem goes away If you get or increase a vibration when decelerating then the pinion yoke is too LOW Rotate it up2. 5 8 11 Nylok nut Shockwave brackets to axle brackets 7 16 20 Nylok nut U bolts 3 8 16 x 3 Gr 5 bolt Upper bar installation jig 3 8 16 nut Upper bar installation jig AirRAR by Air Ride Technologies 1 Raise the vehicle to a safe and comfortable working height Use jack stands to support the vehicle with the suspension hanging freely 2 Support the axle and remove the leaf springs shocks pinion snubber and tail pipes Refer to the factory service manual for proper disassemble procedures Keep the factory upper shock bolts and front leaf spring mounting bolts 1 The pinion snubber mount must be cut on the line shown in the picture This allows more clearance of the pinion for maximum drop 2 Remove the gas tank sending unit wire from the tank and pull it into the trunk 3 This raised area around the gas tank sending unit wire must be flattened to allow the upper bar mount to sit against the pan The area marked in chalk can either be pie cut hammered flat and welded back together or cut out completely 4 The upper bar mount will bolt to the bottom of the car using the factory shock bolts and locates off the factory shock mount Note The bar mount will point towards the outside of the car This is the passenger side 5 Using the bracket as a template drill 4 7 16 holes through the pan 6 The upper bar bolt plate can be dropped into place from the trunk The bracket will be clamped into pl
3. using appropriate fasteners that roll rather than cut threads into the vehicle structure Having said that you could potentially encounter a vehicle that has rust or collision damage in these areas Or maybe you intend to consistently place the vehicle in severe racing applications with sticky racing slicks and high speed corners In these cases it is perfectly acceptable to weld the AirBar components into your vehicle Even in these severe cases we recommend that you install the entire AirBar assembly first including the fasteners and then use short 1 long tack welds to secure your installation Remember that the vehicle structure metal is typically much thinner 060 120 than the 188 thick AirBar brackets If you burn through the vehicle sheet metal Structure you may end up with an installation that is weaker than before you tried to weld it The other reason to weld in your AirBar assembly is you simply want to You re a welding kind of guy that s the way you ve always done it you have the skills and equipment to do it In that case weld away with our blessing
4. ace using 3 8 nylocs and flat washers 7 Lower the axle enough to slide the upper crossmember into place The frame is wider towards the rear of the car as is the crossmember Push it forward until it is tight between the frame rails but make sure it is square Drill two holes with a 7 16 drill bit 8 Remove the crossmember and drop the 3 8 U bolt through the holes Reinstall crossmember and tighten with 3 8 nylocs and flat washers Shown below 9 Bolt the lower axle bracket to leaf spring plate on the bottom of the axle using the new 7 16 nylocs supplied Do not tighten until the lower bar is in place 10 Install the lower arm the longer one into the oem leaf spring hanger using the factory hardware This is a polyurethane bushing and is lubricated at the factory with lithium grease Any future lubrication can be done with any non petroleum based lubricant 11 The other end of the lower bar will attach to the axle bracket using 5 8 x 2 3 4 bolts and nylocs This is a rubber bushing and does not require lubrication Do not tighten the bar bolts yet 12 The lower Shockwave mount is bolted to the lower two holes of the axle bracket with two 5 8 x 1 1 2 bolts and nylocs The U shaped portion of the bracket will face toward the inside of the vehicle 13 Bolt the axle tabs to the upper bar as shown in the picture Then bolt the other end to the upper bar mount Do not weld the tabs yet
5. een the quarter panels Set pinion angle Bolt one end of the jig to the cradle using a 5 8 x 2 3 bolt Using another 5 8 x 2 bolt fasten the axle tabs to the other end The tabs must be bolted to the outside of the jig swing the bar down letting the tabs rest onto the axle Trim the brackets as necessary to minimize the gap to be welded Check pinion angle ride height and axle center Tack weld the tabs in place Remove jig and install upper bar Repeat this process for the other side Recheck pinion angle ride height and axle center Sound familiar After the tabs have been tack welded on both sides remove the upper bars to avoid melting the rubber bushings Let the axle drop down for better access to the tabs Lay 1 welds on the inside and outside of the tabs Skip around from one side to the other to avoid overheating bpa Rem Description c 3 4 16 jam nut 3 Heim end 6 5 8 11 x 2 bolt 8 3 8 16 x 3 4 bolt ridetech Air Ride Technologies 350 S St Charles St Jasper In 47546 Ph 812 482 2932 Fax 812 634 6632 www ridetech com Should weld my AirBar 4 link assembly in since we get this question quite often it deserves a proper explanation The AirBar has been designed for bolt in installation We have paid special attention to interfacing with key structural areas of each vehicle fastening bracketry in at least two planes to properly distribute load paths and to
6. ridetech Air Ride Technologies 350 S St Charles St Jasper In 47546 Ph 812 482 2932 Fax 812 634 6632 www ridetech com Part 11257199 62 67 Nova Rear AirBar Components 1 90002077 Lower axle bracket Driver 1 90002078 Lower axle bracket Passenger 1 90000535 Lower shockwave mount 1 90000536 Lower shockwave mount 2 90000144 Axle tabs 2 90000524 Axle tabs 1 90000539 Upper bar mount 1 90000540 Upper bar mount 2 90000533 Upper bar bolt plate 1 90000537 Upper cross member 2 90001001 Upper bar TW 7 375 C C length 9 50 2 90001030 Lower bar WW 25 00 2 99250001 28 straight grease fitting 4 90001085 Poly bushing halves for lower bar 4 90000538 Lower bar bushing sleeve 2 90001589 Threaded Kevlar lined Heim end 2 99752004 4 16 jam nut for rod end 4 90000552 Aluminum spacer for Heim end 4 90001942 Rubber bushings pressed into bars 2 90002285 Square corner U bolt Upper cross member to car 2 70010694 Jig brackets for upper bar installation Hardware Kit Part 99010018 5 8 11 x 2 Gr 5 bolt 5 8 11 Nylok jam nut 3 8 16 Nylok nut 3 8 SAE flat washer 1 2 13 x 2 1 Gr 5 bolt 6 Bars to cross member and brackets 6 1 1 4 4 1 2 13 Nylok jam nut 4 4 8 2 2 Bars to cross member and brackets Upper bar mount and cross member Upper bar mount and cross member Shockwaves to mounts Shockwaves to mounts 5 8 11 x 1 1 Gr 5 bolt Shockwave brackets to axle brackets
7. ward to correct it i ai e S gmc ey 16 Axle center is best determined by dropping a plum on the outside of the quarter panel and measuring into the axle This must be done with the car level from side to side 17 Once everything has been double checked you can tack weld the tabs the axle After removing the upper bar from the tabs you can finish welding the tabs This will prevent you from frying the bushings 18 Reinstall the upper bar and snug all bar bolt with the axle still at ride height The 4 spacer can now be removed 19 A new 3 4 hole must be drilled for the sending unit wire You can reuse the original grommet 20 Apply thread sealant the air fitting and screw it into the top of the Shockwave 21 The Shockwave will be secured into place with 1 2 x 2 1 4 bolts and nylocs 22 Check clearance with brake lines parking brake and vent tubes 23 The exhaust can either be rerouted under the axle or a turn down can be installed Upper Bar Installation Jig This jig has been supplied to aid in the installation of the upper 4 link bar It can be temporarily used to properly align locate and weld the tabs onto the axle It will also ensure that the mounting bolts are parallel to the ground Follow the diagram below to set the jig to the same length as the upper bar use the 3 8 x 3 4 bolt and nuts to set the length Position the axle at ride height Center the axle left to right betw
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