Rear blocks
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99-10 ford f250 ready lift 4" rear block kit 66-2094
Do Excursion's use a tapered or flat block? Thread below should answer your questions.
https://www.ford-trucks.com/forums/6...ar-blocks.html
Do Excursion's use a tapered or flat block? Thread below should answer your questions.
https://www.ford-trucks.com/forums/6...ar-blocks.html
#7
Flat blocks ok?
I know this is an old thread, but I found it doing a search for info. Last week I ordered a set of 4" flat blocks and U-bolts from SDSprings.com, and I installed them today. Upon removing the stock blocks I realized that they are tapered. I ordered the flat blocks as I was under the impression that only the longer wheelbase trucks needed the tapered ones. I installed the new blocks anyway since I was sick of the front end sitting higher than the rear for the last 2 months due to my X codes. Will this hurt anything? Am I going to need to buy tapered blocks instead? Tapered shims? Thanks in advance for any help.
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If I remember correctly, the tapered block is associated with a driveshaft that has a double cardin ujoint setup up by transfercase.
It corrects driveshaft angles for that driveshaft.
Flat block is for a single ujoint on each end of driveshaft.
So I agree....check your driveshaft to rear pinion angles.
It corrects driveshaft angles for that driveshaft.
Flat block is for a single ujoint on each end of driveshaft.
So I agree....check your driveshaft to rear pinion angles.
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The proper angle depends on the setup.
If you have a double cardin setup the angle between the pinion and driveshaft should be between 0 and 2 degrees or so. The closer to 0 the better. In other words a straight line from pinion to driveshaft up to DC joint. That DC joint takes all angle.
If you have single u joints at each end of driveshaft the angle between the rear pinion and driveshaft should = the angle between the transfer case out put shaft and driveshaft.
If you have a double cardin setup the angle between the pinion and driveshaft should be between 0 and 2 degrees or so. The closer to 0 the better. In other words a straight line from pinion to driveshaft up to DC joint. That DC joint takes all angle.
If you have single u joints at each end of driveshaft the angle between the rear pinion and driveshaft should = the angle between the transfer case out put shaft and driveshaft.