I just finished installing my new 9" Currie rear end with 4:11 gears and a Detroit Locker and Explorer rear disk brakes. For anyone interested in what hidden adventures await them here they are:
1. Drive shaft needed to be shortened 2 inches. $80.00
2. New special u-joint required to adapt Mustang drive shaft to bigger 9" yoke. $22
3. New u-bolts required which caused mtg plate to be modified to fit the bigger bolts. The under rider traction bar plate holes were not far enough apart so I had to cut the ears off and weld it directly to the mtg plate. (My labor for welding $0.)
4. Parking brake came with universal kit.....which did not work so I went back to the stock cables which do work. Wasted $110 on a part I did not need but can't send them back because you must cut them to fit. I actually have good functioning parking brakes for the first time in 10 years. (Yes they are not really needed but if you have a State or Military Post car inspections they are required to be functional.)
5. I had a drain plug installed ($50) but they installed it on the very bottom of the diff. housing. I should of specified that it be mounted slighly off center so the jack would not hit it everytime I have to lift the car.
6. Speedometer is about 10 mph off so I had to order a new gear. I hope it works because I have to adapt a early model gear to a late model AOD transmission. CJ Pony Parts had it under part number HW1295. $11
7. Since I already had disc brakes (SS Brakes = Junk (my opinion) The brake lines attached with no modifications. The stock rim would only work with one 1/4" spacer and slight grinding of the caliper. The SS brake calipers took two spacers and major grinding and the parking brakes never did work. (Yes it was a bad design to start with but why continue to sell them if you know they do not work!)
All in all it was not that hard to install just took longer than expected because of the unforseen issues. I have not been to the track yet to see the fruits of my labor as far as 1/8 mile ET improvments but will go this weekend if it does not rain.
Total cost = $3,207.00
1. Drive shaft needed to be shortened 2 inches. $80.00
2. New special u-joint required to adapt Mustang drive shaft to bigger 9" yoke. $22
3. New u-bolts required which caused mtg plate to be modified to fit the bigger bolts. The under rider traction bar plate holes were not far enough apart so I had to cut the ears off and weld it directly to the mtg plate. (My labor for welding $0.)
4. Parking brake came with universal kit.....which did not work so I went back to the stock cables which do work. Wasted $110 on a part I did not need but can't send them back because you must cut them to fit. I actually have good functioning parking brakes for the first time in 10 years. (Yes they are not really needed but if you have a State or Military Post car inspections they are required to be functional.)
5. I had a drain plug installed ($50) but they installed it on the very bottom of the diff. housing. I should of specified that it be mounted slighly off center so the jack would not hit it everytime I have to lift the car.
6. Speedometer is about 10 mph off so I had to order a new gear. I hope it works because I have to adapt a early model gear to a late model AOD transmission. CJ Pony Parts had it under part number HW1295. $11
7. Since I already had disc brakes (SS Brakes = Junk (my opinion) The brake lines attached with no modifications. The stock rim would only work with one 1/4" spacer and slight grinding of the caliper. The SS brake calipers took two spacers and major grinding and the parking brakes never did work. (Yes it was a bad design to start with but why continue to sell them if you know they do not work!)
All in all it was not that hard to install just took longer than expected because of the unforseen issues. I have not been to the track yet to see the fruits of my labor as far as 1/8 mile ET improvments but will go this weekend if it does not rain.
Total cost = $3,207.00