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Whichever way it takes to get to this. ^^^
I'd say the majority of your wheel hop prob is those lowering springs. Too s-o-f-t.
More-n-likely throwing the pinion angle off, too.
How many leafs in the pack? Is there an 'overload' spring in there?
If you need to add a wedge, you will need some leaf spring center bolts with extended heads.
Because...the head of the bolt has to be able to reach through the wedge & into the perch's centering hole.
IIRC B/T sells 'em. The other drop kit co.'s may too.
Or, you can make your own. GM lists regular head size center bolts in 4 lengths for cheap.
C1500's use the shortest. Get the next longest. Crank a nut to the head with some red loctite. Grind off the shoulders of the nut down to the bolt's head size.
You'll need new U-bolts. They're torque-to-yield. One time usage.
I didn't have to get my driveshaft shortened on a 2/4 drop.
Even if that had to be done, it would only of been one more addition to the list of B.S. I had to go through, not only with the install but with getting it all to work properly. (Along with everyone has that's ever done a 2/4!)
It's a lotta work for..."Damn. Not enough. Close, but no cigar."
That was the first thought as soon as it was off of the hoist, and every time after when doing 'the look-back'.
The 4/7 on my '98 was less hassle, looks 'right', and still has more ground clearance than a stock Civic.
Save your front hangars. You'll need them for when you go 4/6. Like 90% of every other 400 owner that first went 2/4.
I'll never do another.
