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9 With the old spring laying next to the new (bottom) we were suprised to find them to be the same part numbers. A local Mustang spring supplier told us that the 42-437 part number is the standard four leaf replacement spring for 65-70 Mustangs.

10 Leaf springs generally come with new front bushings pressed in. However you'll need to install new rear bushings, or transfer your old ones if they are in good shape. Ours had under 10,000 miles so we didn't hesitate to reuse them. Use a little silicone spray or white lithium grease to make installation easier.

11 A common remedy for sagging leafsprings is to prop them back up with longer shackles -which results in the unsightly hardware hanging below the rear valance. Now is the time to ditch the drop shackles and pick up a new OEM set. They usually come with new bushings, all for under $40.

12 The new spring is installed into the front frame socket first. Then swing it upward from the rear and secure it to the rear bushing bracket. Then secure the U-bolts and shock plate to the axle tube.

13 We're using a 1" aluminum block to lower the car and keep it level with the front. In our opinion this is the easiest and most versitile way to lower the rearend. Some companies sell leafsprings which have the drop built in the spring (the rear "eye" is either "reversed" or "middle" of the spring.) With the lowering block you can always remove or mill it if you need to bring the end up a little in the future.

14 The finished result is a car that has the proper ride height and no longer looks like a stink bug doing it's business. New leaf springs will also restore the road handling and stability of the vehicle. F/M

Posted by evanlivingstone, 12/10/12 07:56pm:
Thanks for showing how the lowering block is installed.



 
 

 



 


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