Step-6: Index Teeth for Alignment This photo shows that I have indexed the unit to have the teeth perfectly in alignment. If the differential case does not rotate, the hypoid ring gear and the pinion will not rotate. Speedway Motors continues to bring quality products at an affordable price to keep your project on the road and the race track. Keep in mind that the downside to a tightly assembled and heavily preloaded limited-slip differential is additional wind-up and potential chatter and pops as the plates transition from sticking to slipping. They are curved to match the differential case and back surface of the pinions.
The spring plates become thicker as the spring rate increases. This soaking process helps prevent the new clutch pack from chattering after assembly. While still in the press, tighten the three bolts securely. Also, inspect the differential pinions and the thrust washers. Since this is just an assembly aid, the nut just needs to be hand tight.
Some enthusiasts mix and match different parts from multiple differentials in an attempt to repair a worn-out unit. At this stage, nothing is holding the side gears in place, so they may fall out. Ford Mustang Differentials There are several differentials that have been offered for the Ford 8. You can still get all the parts you need from Ford, but you'll find 'em cheaper on eBay. If you are planning on running slicks and racing often, shim it tight. If so, just remove the pinions and index by one tooth with the side gear. Be prepared for this and catch the gear and the clutch pack.
There are internal differences between the two and most parts are not interchangeable. As a result, you can set up different preload torques. Next grab the spring pack from the opposite side window of the differential housing. This grease helps hold the parts in place. The performance kits can be as thick as 0. .
The last kit I bought off eBay was actually Ford in a Motorsports box. In fact, the Eaton 8. You may wonder why one wheel rotates in the opposite direction. The above information is true for all traditional factory type-differentials. Step-10: Install Differential Pins Install and align the three differential pins, which is just a matter of pushing them in place by hand see step 12 on page 75. Take a good, long look at the surface of the teeth and look for signs of wear. Shim kits are available, and the master rebuild kit comes with a set.
So take the time now to make certain that the pin goes easily in place right. Basically, it would be the path of least resistance. This added clearance reduces the torque capacity and usually results in tire spin. This homemade tool can be as simple as a steel plate with the bolt pattern drilled in, and a large nut welded in the middle that is aligned with the center of the axle shaft. Now we assume that the total compressed height is 1. The thickness of that shim is what determines preload and break-away torque more on that later.
This is not recommended and the performance cannot be predicted. Does anybody have Info on how to do it? The chart shows speed difference plotted on the horizontal axis against torque transferred on the vertical axis. The few road racers that still use clutch-type limited slip rears don't use it either for the same reasons. Once the gears are in, installing the S-shaped pre-load spring is the last step. Unfortunately, in order to correct this misalignment you need to rotate the pinions back out and index one pinion over to the next side gear tooth. Then, when higher torque is applied, the separating forces from the side gears further compress the clutch packs. Over the years I've had 2 done by 2 different Shops.
Now that the differential side gear is essentially locked to the bench vise via the splined connection, rotate the differential case. You can even take the original axle shaft and bolt it to the wheel. This is because, when the separating force from the gears is applied to the clutch pack, the first and second plates start transferring the torque first and then the other plates come into play. Additionally, the ring gear can partially block the already small differential case windows. I've rebuilt several in Ford 8. Step-3: Install Reaction Plates The tabbed outer reaction plate has friction material on a single side left.
Large-carrier-bearing differentials can be converted to 31-spline models with a full-internal rebuild kit with new side gears. My opinion is to avoid this altogether and stick with the latest recommended order of plates G-R-F-R-R-F-R-F-S. Limited slip differentials also maximize acceleration of the vehicle. See Chapter 5 for more about clutch pack preload and side gear separating force. If you have temporarily installed the pinions and differential cross pin, they need to be removed. A little trick here to see how tight the pack is without completely assembling the unit is to install the two pinions and cross pin without the other side gear.
In this situation, if one wheel begins spinning on a slippery surface ice, gravel, etc. Before I put any brute force to the thing I want to make sure I understand how and where it comes apart. Use three countersunk headstyle bolts for this. We hit the heavy wear marks inside the hub with some emery cloth to knock down any burrs or rough spots. Step-3: Arrange Clutch Pack Over the years, clutch plates and steel reaction plates have come in many different orders. This is a wide range but the torque may fluctuate by as much as 40 ft-lbs.