G8 Torque Specifications Front Front Subframe to Body Center Retaining Bolts 118 lb-ft Front Subframe to Body Front Retaining Bolts 118 lb-ft Front Subframe to Body Rear Retaining Bolts 178 lb-ft Lower Control Arm to Knuckle Retaining Bolt and Nut First Pass 30 lb-ft Final Pass 120-deg Lower Control Arm to Rear Subframe Retaining Bolt 129 lb-ft Lower Engine Mount to Front Subframe Retaining Nut 59 lb-ft Upper Control Arm Pivot Bushing to Upper Control Arm Retaining Bolt 126 lb-ft Upper Control Arm to Knuckle Retaining Bolt and Nut First Pass 44 lb-ft, 90-deg Tie Rod End to Tie Rod Locking Nut 37 lb-ft Rear Adjustment Link Lock Nuts 37 lb-ft Strut to Knuckle Retaining Nuts and Bolts First Pass 63 lb-ft Second Pass 74 lb-ft Third Pass 90-deg Rear Rear Subframe Retaining Bolts to Body First Pass 48 lb-ft Second Pass 125-deg Strut Assembly to Body Retaining Bolts 43 lb-ft Lower Control Arm to Knuckle Retaining Bolt and Nut First Pass 30 lb-ft Final Pass 120-deg Lower Control Arm to Subframe Retaining Bolt 129 lb-ft Lower Control Arm to Strut Assembly Retaining Bolt and Nut First Pass 30 lb-ft Final Pass 120-deg Rear Driveshaft to Rear Hub Retaining Nut First Pass 110 lb-ft Loosen 180-deg neg Final Pass 237 lb-ft Stabilizer Bar Insulator Bracket to Subframe Retaining Bolts 16 lb-ft Stabilizer Bar Link to Lower Control Arm Retaining Nut 37 lb-ft Stabilizer Bar Link to Stabilizer Bar Retaining Nut 37 lb-ft Strut Assembly Retaining Nut 33 lb-ft Strut Assembly to Body Retaining Bolts 43 lb-ft Differential to Subframe Retaining Nuts 59 lb-ft. Do you realize, you posted 364 days to the day, from when it was origionally posted. These gears all rely on each other and a lubricant called differential fluid to keep the differential transferring power smoothly and seamlessly. In the photo below you can see that one plug has a magnet on it and the other doesn't. I backed the vibe up on ramps, putting the car up on jack stands will do. Back brakes were replaces, as was a rear wheel bearing, but the grinding noise continues. Sulfur compounds used in extreme pressure lubricants smell either like rotten eggs or worse depending on additive concentration.
In addition, the fluid has the potential to enable improved fuel economy and extended drain intervals. Since I didn't see a write up on how to change it, figured I would do one. Chase answered 8 years ago i had a howl in my gto and it turned out to be a rear wheel bearing. For this reason, the wheels of a car need to be able to revolve independently and at varying speeds to prevent slipping, and to keep the car moving with power around corners. Who knows if it's the right kind, or the right amount. The one with the magnet is the drain plug. These compounds have since been replaced with more modern manufactured equivalents.
It goes without saying that these pieces wear out, but they do so slowly, meaning you may not notice they need attention until. There's absolutely no reason to use any other rear diff fluid, and as Kestrel mentioned, I would be worried about the friction modifyers any other fluid had anyway. Basica provided baseline measurements and led the work. . Is this a common problem? Found some good info from others smarter on the subject.
The gears inside the differential slide around coated in a slippery film of oil. I do reccomend a change of the rear lube around 50,000 miles or so. But as good as the G8 is in stock form-and the reviews from the automotive press have been unanimous-we knew that if it was to be a serious track contender, improvements needed to be made in cornering and steering. Changing it yearly is completely un-nessassary, it's not being contaminated with gas, it prolly doesn't need it. If not, then take the proper precautions to avoid the lingering reminder of a gear oil change. Company name, license number, and brand name are shown.
You won't need much oil you only need 1. Your hub for horsepower Get first access to hit shows like Roadkill and Dirt Every Day Join free for 14 days now According to Pete Basica, president of its U. Again, it is the opinion of Pedders that the G8 should be delivered, or at the very least, available, from the factory with our suspension components pre-installed. This time around i plan in putting the car up on 4 stands so it's level Quote, originally posted by Sublimewind »Do you realize, you posted 364 days to the day, from when it was origionally posted. New Engine as of 10- 5, 2011. Once the oil is done draining clean and replace the lower fill plug on the differential, leave out the upper fill plug to pump new oil in.
The diff has carbon clutch discs. Spare Tire and Jack and Tinted Window's, hood scoops gutted, Poor Mans Heater Hose modification holding up the hoses with zip ties , Painted the front dart to Panther Black. I asked questions about this too. Not just any oil can stand up to the extreme pressures dished out by the constant lashing of the differential gears. First thing to make things easier to work on.
Just like engine oil, the differential fluid must be changed at regular intervals. The one with out the magnet it the fill plug. I plan on getting another bottle and replacing this fluid again in like 3 months, I will essentially use this change as a flush since the out going lube was so dark black. I've read that depending on the age of the part, switching to synthetic can actually uncover problems small leaks in seals, etc. Without getting into a lecture on lubrication, the best path to take is to use only what is specified for your differential. The basic oil and air struts are modestly tuned on the critical damping scale.
This list will be updated on a regular basis as more approved products are added. The castrol lube is is designed for our type of diff specifically. Hi there, this is my first post on GenVibe. Pump the oil in till it comes out the upper fill plug. Might as well get the gallon and do the T-Case too while I'm down there. Since your vehicle cannot function without a differential, we highly recommend getting your differential inspected, and the differential fluid changed, as a part of your regular vehicle maintenance routine. I asked for a discount and he gave me 15% off just for the asking! Having it on ramps for the whole drain, might leave some in the case, toward the front of the diff.
Locate the drain and fill plugs on the driver side of the differential and remove the lower plug. The fluid is made by Castrol. My mechanic took roughly an hour to do in the driveway. !!! If you have a rear-wheel drive vehicle your car uses engine power to move only the rear wheels, so you will only have one differential mounted on the rear axle. Quote, originally posted by keithvibe »it's really easy to do. How often differential service is required will vary from car to car based on vehicle make, model and mileage.
Next up Transfer case being they use the same oil it makes life easier. !!! Car Brakes: How Do You Know When to Change Them? By Zach Bowman For those who suffer a daily commute through heavy traffic, your vehicle's braking system can bring thousands of pounds of metal, plastic and empty Starbucks cups to a stop hundreds of times before you get to work. During a Complete Vehicle Inspection, our tire and automotive service professionals inspect your steering and suspension components, including the differential. Front-to-rear weight distribution is very good. Quote, originally posted by pick41 »Old thread I know, but nice write up, was thinking about doing this myself before winter. If you have an all-wheel or four-wheel drive vehicle your car is built in a way that allows the engine to send power to all four wheels, so you will have both a front differential and rear differential.