Leaf springs

Note: It is not recommended to use the 'conversion' leaf springs to replace your composite springs with steel. Get the proper set of springs and a new set of hangers from a van that came with steel leaf springs.

How to measure leaf springs.

All measurements are made with the springs right side up, with no load.

• • (A) the center of the front eye back to the center bolt (SE short end)

  • (B) the center bolt back to the center of the other eye (LE long end)

  • (C) the top plate to the centerline of the two eyes

  • (D) pack thickness

  • Number of leaves

When modifying leaf springs, always use proper stepping.

A properly stepped set of leaves can almost double the weight. Backing leaves should not be cut square, but should be rolled or use a diamond point.

Leaf spring eye types.

Shackle Angle

Any shackle angle more than 15 is too great, move the front mount to achieve the proper shackle angle.

Leaf spring abbreviations:

# - Number

BE - Both Ends

Ber - Berlin Eye

BP - Bracket Plate

C to C - Center to Center

Dut - Dutch eye

EL - Eye Leaf

ELW - Eye Leaf wrapper

GAWR - Gross Axle Weight Rating

GVWR - Gross Vehicle Weight Rating

HD - Heavy Duty

HK 1 - Hook 1st Leaf

HK 2 - Hook 2nd Leaf

HK 3 - Hook 3rd Leaf

HK 4 - Hook 4th Leaf

HOL - Hole

I.D. - Inside Diameter

JP - Jack Plate

LCF - Low Cab Forward

LE - Long End

LH - Left Hand

NA - Not Available

No - Number

NS - New Style

O.D. - Outside Diameter

O.E.M. - Original Equipment Mfg.

OS - Old Style

PD - Pad

Reb - Rebound

Rev - Reverse

RH - Right Hand

RR - Radius Rod

S.R.I. - Spring Research Institute

SB - Shock Bracket

SBB - Sway Bar Bracket

SE - Short End or Shock Eye

SEB - Shock Eye Bracket

Susp. - Suspension

TE - Tow Eye

w/ - With