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Technical support articles and answers to frequently asked technical questions
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There were 135 articles found in this category:

  1. questionIs my Spohn driveshaft too short? The slip yoke sticks a lot further out of the transmission.
    A common question we get from customers after they install one of our Extreme Duty or Top Gun driveshafts is whether the driveshaft is too short. This is an optical illusion when comparing to the factory driveshaft if you are looking at how much of the transmission slip yoke is sticking out of ...
  2. questionMy Del-Sphere ends are making noise, what can I do to make them quiet?
    If your del-sphere end is making noise that may mean the tension setting is too loose. You can correct this by tightening the del-sphere's adjuster ring using our del-sphere adjustment wrench. If you have a panhard bar with a Del-Sphere end the Del-Sphere end will contact the inside of the pan ...
  3. questionOn my 1978-1996 GM B-Body car can I run just the extended length rear lower control arms?
    To maintain proper geometry you must run the extended length lower and upper rear control arms. You can not just run one and not the other. You will need to get a 3/4" longer driveshaft as well.
  4. questionOn my 1982-2002 F-Body (Camaro / Firebird) can I remove the upper panhard bar brace? What does it do? Do you make a tubular upper panhard bar brace?
    We get many inquiries regarding the upper panhard bar brace from customers who need to remove it to gain exhaust clearance for custom dual exhaust set ups, etc. From the factory the 1982-2002 Camaro and Firebird have a lower panhard bar and an upper panhard bar brace. The lower panhard bar is w ...
  5. questionOn products where you ask if I want poly bushing grease, how many do I need?
    On products that have an option choice for poly bushing grease you only need to get one of these. This is a 14 ounce grease gun cartridge of our synthetic polyurethane bushing grease (Part# 902). If you are purchasing multiple items at one time that ask if you want poly bushing grease you only ...
  6. questionOn roll cages, what is the difference between through the dash and in front of the dash?
    On many of our roll cages you have the option of getting it through the dash or in front of the dash. In Front of the Dash: Getting the roll cage to mount in front of the dash is the easiest of the two to install. No modifications are required to the dash and welding access is easy. The front b ...
  7. questionOrdering A Rear End - The Master FAQ List
    This article is a master list of links that will answer any question you may have about ordering a new aftermarket rear end. If you still have questions after reviewing these articles feel free to shoot us an email or give our tech line a call at 1-888-365-6064. Ordering A Rear End - The Maste ...
  8. questionSuspension Alignment Settings Explained
    Tech Article: Suspension Alignment Settings Explained Camber: Camber is the tilting of the wheels from the vertical when viewed from the front of the vehicle. When the wheels tilt outward at the top, the caster is positive (+). When the wheels tilt inward at the top, the camber is negative ( ...
  9. questionThe front rotator plates on my torque arm are not straight up and down, is this ok?
    It is common if you have an aftermarket rear end, most notably with a Ford 9" rear, that your front rotator plates for the torque arm are not perfectly straight up and down but angled towards the front of the car. This is because the torque arm mount on the aftermarket rear end is further front ...
  10. questionThe tubular steering brace wonder bar doesn't seem to clear my fan housing on my Thirdgen F-Body
    1982-1992 GM F-Body cars that came equipped with the factory dual electric fans will have to trim down the plastic mounting bosses on the bottom of the fan housing to allow for proper steering brace fitment.
  11. questionThere are 6 mounting holes in your transmission crossmember but only 4 threaded holes on my 1982-1992 F-Body Camaro Firebird
    Our transmission crossmembers for the 1982-1992 GM F-Body Camaro and Firebird have three (3) slotted mounting holes per side. The car itself will have three (3) mounting holes per side, but only two (2) of them are threaded. You only need to use two mounting bolts per side. The reason there are ...
  12. questionWhat are the front end and rear suspension alignment specifications and settings for the 2010+ Chevrolet Camaro?
    See the .pdf attachment below for the front end and rear suspension alignment settings and specifications for the 2010+ Chevrolet Camaro as recommended by GM.
  13. questionWhat are the lengths of the stock 2010+ Chevrolet Camaro rear axles? Can you make custom length axles?
    Yes, we can make custom length rear axles for the 2010+ Chevy Camaro. Custom length rear axle builds have a $75.00 additional charge over the standard price of our axle packages. The stock rear axle lengths in their middle (at rest) position, measured stub end to stub end are: Driver's Side: 35 ...
  14. questionWhat are the specifications to run a 15" x 10" rim on a 1982-1992 F-Body Camaro & Firebird? How large of a tire will fit without modifications?
    On the Thirdgen 1982-1992 F-Body Camaro and Firebird you want to use a 15" x 10" x 5.5" back spacing rear rims. These rims will fit inside of the wheel well with no rolling of the lip and only minor "massaging" of the front of the lower inner fender well. A 28.00" x 11.50" tire will fit on that ...
  15. questionWhat are the swing out side bar kits for roll bars and cages and how do they work?
    The swing out side bar kits hinge the side bar so it opens and closes just like your car door allowing for easy entrance and exit from the vehicle. Also, with the swing out side bar kits installed you can completely remove the side bars for every day driving and just install them when you go to ...
  16. questionWhat gear oil should I use in my Moser or Strange Engineering rear end? How much do I need?
    Capacity: Aftermarket rear ends will take between 3-4 quarts of gear oil. So when purchasing gear oil for your rear end you will need to purchase four quarts. Moser Engineering Rear Ends: The limited slip differential design has been extensively tested with high quality non-synthetic 80W90 hy ...
  17. questionWhat is a Del-Sphere pivot joint?
    Why Should You Use Del-Sphere Pivot Joints from Spohn Performance? The suspension bushings on your vehicle have a significant impact on your vehicle's ride, comfort, handling, acceleration, noise and vibration. When the vehicle leans (rolls) in a turn, one side of the chassis moves up relative ...
  18. questionWhat is a full floater rear end?
    A full floater axle is a double splined non-flanged axle shaft with splines on both ends. The rear housing end has hubs on the end where the bearings are installed and a drive flange where the studs are installed, not on the axles like a standard rear end. With this set up it takes pressure off ...
  19. questionWhat is the difference between mild steel and chrome moly?
    A common misconception is that chrome moly is lighter than mild steel. Given the same o.d. and wall thickness a chrome moly tube weighs the same as a mild steel tube. Chrome moly is the abbreviation for "chromium molybdenum", and it is an alloy steel. It was designed for and is used extensively ...
  20. questionWhat is the difference between Pro Gears & Street Gears when ordering a rear end?
    Pro gears are made from 9310 and then heat treated. It is a softer alloy than the 8620 Street gears. The softer 9310 alloy allows the gear to absorb higher impact loads that are generated in drag racing without developing cracks. A harder 8620 street gear could shatter under the same loads. As ...
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