AAL = Add A Leaf (to the spring pack)

ABS = Antilock Brake System

AFAIK = As Far As I Know

AMC 20 = American Motors Model 20 axle (rear, used on the '86 MJ with metric ton suspension)

AX-4 = 4-speed manual transmission (early 4-cyl XJ and MJ)

AX-5 = 5-speed manual transmission (4-cyl and 2.8L V6 XJ and MJ)

AX-15 = 5-speed manual transmission (mid-89 - 1999 XJ and MJ 4.0L)

AW4 = Aisin-Warner 4-speed automatic transmission (XJ and MJ w/ 4.0L engine)

BA 10/5 = 5- speed manual transmission (87 to mid-89 XJ and MJ 4.0L)

BFH = Big Friggin' Hammer

BS = Back Spacing

CAD = Central Axle Disconnect

CPS = Crankshaft Position Sensor

CTS = Coolant Temperature Sensor

D30 = Dana 30 axle (front, in an XJ or MJ)

D35 = Dana 35 axle (rear, in an XJ or MJ)

D44 = Dana 44 axle (rear, in an XJ or MJ)

DD = Daily Driver

DS = Drive Shaft

DW = Death Wobble

ECU = Engine Control Unit (the engine computer on earlier XJs and MJs)

EFI = Electronic Fuel Injection

EGR = Exhaust Gas Recirculating Valve (used with early XJ & MJ engines thru 1990)

FSM = Factory Service Manual

FWIW = For What It's Worth

HO = High Output (post-1990 4.0L motor with new EFI)

HP = High Pinion

IMHO = In My Honest [Humble] Opinion

IMO = In My Opinion

IIRC = If I Remember Correctly

LCA = Lower Control Arm (part of front suspension)

LMAO = Laughing My A$$ Off

LP = Low Pinion

LSD = Limited Slip Differential (see "Trac-Lok")

LWB = Long Wheel Base

MAP = Manifold Absolute Pressure sensor

MJ = Jeep Comanche

MPI = Multi-Port Injection

NSS = Neutral Safety Switch (automatic transmissions only)

OBDI = first generation On-Board Diagnostics (also OBD)

OBDII = second generation On-Board Diagnostics

O2 Sensor = Oxygen sensor

PCM = Powertrain Control Module (the engine computer on newer XJs and MJs)

Renix = RENault/bendIX (AMC's source for the ignition & injection system used in the 87 - 90 XJ and MJ <and the 86 4-cyl>)

SOA = Spring Over Axle (rear suspension conversion for MJ, OEM configuration for XJ)

SUA = Spring Under Axle (OEM rear suspension configuration for MJ)

SWB = Short Wheel Base

SYE = Slip Yoke Eliminator

TB = Track Bar (part of front suspension/steering system)

TBI = Throttle Body Injection

TIA = Thanks In Advance

TPS = Throttle Position Sensor

TRE = Tie Rod End

TCU = Transmission Control Unit

Trac-Lok = Jeep factory optional limited slip differential

UCA = Upper Control Arm (part of front suspension)

XJ = Jeep Cherokee