ZJ Forum FAQ's *READ THIS BEFORE YOU POST*

**Jones** · 10-16-2009, 02:08 AM

INDEX

Frequently Asked Questions

Vehicle Specs

Commonly Used Links

JeepForum.com Frequently Asked Questions

**Jones** · 10-16-2009, 02:09 AM

Frequently Asked Questions / Write-ups

Suspension / Tires

Tire Size vs. Amount of Lift Chart

Common Budget Boost "BB" Questions

What do I need for a 5"+ lift?

Puma's answer to the ZJ front swaybar issue!

What is Death Wobble and How Can I Cure It?

How do I assemble Addco swaybar end links?

Swaybar Endlink Info

Axles / Differentials

How to replace an axle shaft and/or a wheel hub bearing assembly

How to replace Ball Joints

D44a Aussie Locker Install

Warped Rotors (Front end vibrates when I apply the brakes)

A really Good Gear ratio and transmission calculator

Rebuilding a D44a axle

Regearing Chart

Engine / Transmission / Transfercase

46RE Rebuild

5.2 to 5.9 Swap

ZJ Diagnostic codes

There is oil in my breather.

4.0L Oil Filter Adapter O-ring replacement.

Taurus E-Fan Conversion

NP249, NV249 Viscous Coupling

NP249 TO NP242 (or 231) SWAP

NP242 Rebuild Tutorial

ZJ Transmission Band Adjustment

Swapping a 42RE for an AX-15

ZJ Fuse Panel Diagram / Power Distribution Center / PDC

I just regeared or changed tire size on my ZJ, what speedometer gear do I need now?

How do I replace the front crankshaft oil seal?

How do I clean the IAC (Idle Air Control) valve?

Superlift Truespeed

Driveshaft Specs

Saginaw Steering Box/Gear Rebuild

How To Rebuild Your Saginaw ZJ Steering Gear

Steering Box Adjustments - How To Fix your Floppy Steering

Electrical

http://www.jeepforum.com/forum/f197/how-change-dash-light-93-98-zj-767865/

My backup lights don't work or work intermittently.

Power windows/locks stop working

How Can I wire Fog lights up in a ZJ that didn't already have factory Fogs?

Programming 93-95 ZJ's IR Keyless Entry Remotes

Climate Control Diagnostic Mode

Miscellaneous

Passenger Floor Board Wet?

Swampy Bypass fuel pump system conversion

ZJ Fender Trimming

Grand Cherokee Most Common Mods

Commonly Used Acronyms

How Do I Reset the Miles to Service Display?

What are the Technical Service Bulletins for my Jeep?

Where can I request my buildsheet?

License Plate Mount for Roller Fairleads

Custom Bumpers

Fluids for the Grand Cherokee

Fix that sagging door from 95GC

Overhead console install on 93-95 ZJs

Replacing the lift struts

How to replace a ZJ sunroof seal

How to remove cladding on 93-98 ZJ's

Double cardan rebuild (writeup w/pics)

**Jones** · 10-16-2009, 02:10 AM

Vehicle Specs

ZJ Trim Models
Listed from lowest priced to highest.
1993- Base, Laredo, Grand Wagoneer, Limited,
1994- SE, Laredo, Limited
1995- SE, Laredo, Limited, Orvis Limited
1996- Laredo, Limited
1997- Laredo, Tsi, Limited
1998- Laredo, Tsi, Limited, 5.9 Limited

Updates:
1994 - Limited gets rear disc brakes instead of drums used on all 1993, and 1994 Laredo Models.
1995- 2WD is offered in Limited trim, disc brakes for all trim models.
1996- 2WD is offered in both Laredo and Limited, 6 and 8 cylinder models.
1998- 5.9 Limited is offered, and only has a single year of production.

Jeep ZJ Produced from 1993-1995

Exterior Dimensions:
Length: 176.7 in. Width: 69.2 in.
Height: 64.9 in. Wheel Base: 105.9 in.
Ground Clearance: 8.2 in. Curb Weight: 3574 lbs

Interior Dimensions:
Front Head Room: 39 in. Front Hip Room: 56.9 in.
Front Shoulder Room: 58.2 in. Rear Head Room: 39 in.
Rear Shoulder Room: 57.6 in. Rear Hip Room: 49.3 in.
Front Leg Room: 40.8 in. Rear Leg Room: 35.7 in.
Luggage Capacity: 40.1 cu. ft. Maximum Cargo Capacity: 80 cu. ft.
Maximum Seating: 5

Performance:
Base Number of Cylinders: 6 Base Engine Size: 4 liters
Base Engine Type: Inline 6 Horsepower: 190 hp
Max Horsepower: 4750 rpm Torque: 225 ft-lbs.
Max Torque: 4000 rpm Maximum Payload: 1150 lbs.
Maximum Towing Capacity: 5000 lbs. Drive Type: RWD
Turning Circle: 36.6 ft.

Optional Engine - 5.2 MPI V8 (MPI stands for Multi-Port Injection)
Horsepower:220

Fuel Data:
Fuel Tank Capacity: 23 gal.
EPA Mileage Estimates: (City/Highway) for 6cyl
Manual: 16 mpg / 21 mpg Automatic: : 15 mpg / 20 mpg
Range in Miles: (City/Highway)
Automatic: 345 mi. / 460 mi. Manual: 368 mi. / 483 mi.

1996-98 ZJ Dimension changes - (If not shown, it did not change)

Exterior:
Length: 177.2 in. Width: 69.3 in.
Height: 64.9 in. Wheel Base: 105.9 in.
Ground Clearance: 7.7 in. Curb Weight: 3926 lbs.

Interior:
Front Head Room: 38.9 in. Front Hip Room: 56.7 in.
Front Shoulder Room: 59.2 in. Rear Head Room: 39 in.
Rear Shoulder Room: 57.6 in. Rear Hip Room: 49.3 in.
Front Leg Room: 40.9 in. Rear Leg Room: 35.7 in.
Luggage Capacity: 40.9 cu. ft. Maximum Cargo Capacity: 79 cu. ft.
Maximum Seating: 5

Performance for 6 cyl:
Acceleration (0-60 mph): 8.6 sec. Braking Distance: 138 ft.
Road Holding Index: .75 g Base Number of Cylinders: 6
Base Engine Size: 4 liters Base Engine Type: Inline 6
Horsepower: 185 hp Max Horsepower: 4600 rpm
Torque: 220 ft-lbs. Max Torque: 2400 rpm
Maximum Payload: 1150 lbs. Turning Circle: 37.5 ft.

1998 5.9 Limited Performance: (Available only in 1998)

Performance:
Acceleration (0-60 mph): 7.1 sec. Braking Distance: 135 ft.
Road Holding Index: .75 g Base Number of Cylinders: 8
Base Engine Size: 5.9 liters Base Engine Type: V8
Horsepower: 245 hp Max Horsepower: 4000 rpm
Torque: 345 ft-lbs. Max Torque: 3200 rpm
Maximum Payload: 1150 lbs. Maximum Towing Capacity: 5000 lbs.
Drive Type: 4WD Turning Circle: 37.2 ft.

Fuel Data
Fuel Tank Capacity: 23 gal.
EPA Mileage Estimates: (City/Highway)
Automatic: : 13 mpg / 16 mpg
Range in Miles: (City/Highway)
Automatic: 299 mi. / 368 mi.

ZJ Axle, Transmission, Transfercase Info

Axles:

93-98 I6 Grand Cherokee's

D30 low pinion front axle

Differential Location: Drivers side
Stock axle splines: 27 (upgradeable to 30 splines)
Lug Pattern: 5 on 4.5"
Width: 60.5" from wheel mounting surface to wheel mounting surface
Notes: Stronger than earlier D30's. Not a bad axle with 33" or smaller tires. The u-joints are the main weak point but can be easily upgraded. 93-95 uses "cj style, long pinion" gears. 96-98 uses "tj style, short pinion" gears.

D35 c-clip rear axle

Differential Location: Centered
Stock D35 axle splines: 27 (upgradeable to 30 splines)
Lug Pattern: 5 on 4.5"
Width: 60.5" from wheel mounting surface to wheel mounting surface
Notes: Not a bad axle with 33" or smaller tires if left open. Many people upgrade this axle with 30 spline axles and lockers. However you'd be better off swapping in a stronger axle like a Dana 44a or Ford 8.8. The weak part of this axle is the axle tubes. Under extreme pressure they flex which results in broken axles or pinion failures.

93-98 V8 (5.2L or 5.9L) Grand Cherokee's

Dana 30 low pinion front axle

Differential Location: Drivers side
Stock axle splines: 27 (upgradeable to 30 splines)
Lug Pattern: 5 on 4.5"
Width: 60.5" from wheel mounting surface to wheel mounting surface
Notes: Stronger than earlier D30's. Not a bad axle with 33" or smaller tires. The u-joints are the main weak point but can be easily upgraded. 96-98 uses "tj style, short pinion gears" 93-95 uses "cj style, long pinion" gears.

96-98 ONLY
D44a "aluminum center section" rear axle

Differential Location: Centered
Stock axle splines: 30 spline shafts, no upgrades to spline count available
Lug Pattern: 5 on 4.5"
Width: 60.5" from wheel mounting surface to wheel mounting surface
Notes for D44a: Not a bad axle with 33-35" tires, some care needed for the larger end, has been known to handle 37's with care. The aftermarket support is very limited for this axle due to the aluminum center section. The center section is very similar to the unit in the corvette. Many people replace the axle due to the limited gear ratio's available and the extremely limited availability of any traction device such as a locker.

Transfercases:
NOTE: NP stands for New Process, NV stands for New Venture. They switched names in the 90s for an unknown reason, but are the same company.

NP242 used on I6 ZJs and WJs - This is known as SelecTrac NOTE: 93-94 V8 ZJ's had option of the NP242 Selec-Trac t-case.
NP249 used on all V8 ZJs and was optional on 6 cylinder models - This is known as QuadraTrac.
NP 231 used on various "heavy duty" ZJ - known as Command-Trac
Also in 93-94 NP231 Command Trac was available with the I6's in SE's and Laredo 's.

Transmissions
46RE: 4 spd. automatic transmission used in 1998 Jeep Grand Cherokees with 5.9L engines.
44RE: 4 sd. automatic transmission used in 1996 to 1998 Jeep Grand Cherokee's with 5.2L engines.
42RE: 4 spd. automatic transmission used in 1993 to 2002 Jeep Grand Cherokees with 4.0L engines.
46RH: 4 spd. automatic transmission used in 1993 to 1995 Jeep Grand Cherokees with 5.2L engines
AW-4: 4 spd. automatic transmission used in some 1993 Jeep Grand Cherokee's with 4.0L engines.

**Jones** · 10-16-2009, 02:10 AM

Commonly Used Links

Hard-KOR Jeep Accessories by KevinsOffroad.com for Grand Cherokee, Wrangler, Liberty , Commander, and Cherokee

IRON ROCK OFF ROAD

Jeep Lift Kits and Suspension Products direct from Rubicon Express

ZJ XJ WJ WK MJ TJ - Jeep Grand Cherokee and Cherokee SPECIALISTS!

Rustys Offroad

Clayton Off Road - Jeep Lift Kits - Jeep Cherokee Lift Kits - Jeep Wrangler Lift Kits - Jeep Suspension Lift Kits

MallCrawlin HomePage

www.nagca.com

JeepWorld.com - Mopar Equipment - Jeep Parts and Accessories.

Jeeps Are Us - Mopar Equipment - Jeep Parts and Accessories.

Budget Boost Installation:

**Jones** · 10-16-2009, 02:11 AM

JeepForum.com Frequently Asked Questions

How do I use the Search Function?

Avatars, IMG tag, Custom Title and Attachments

JeepForum.com Rules

10-16-2009, 02:10 AM	#3
Jones Infowars.com Join Date: Jan 2008 Location: Arizona Posts: 7,624 Profile Gallery Classifieds My Jeeps	Vehicle Specs ZJ Trim Models Listed from lowest priced to highest. 1993- Base, Laredo, Grand Wagoneer, Limited, 1994- SE, Laredo, Limited 1995- SE, Laredo, Limited, Orvis Limited 1996- Laredo, Limited 1997- Laredo, Tsi, Limited 1998- Laredo, Tsi, Limited, 5.9 Limited Updates: 1994 - Limited gets rear disc brakes instead of drums used on all 1993, and 1994 Laredo Models. 1995- 2WD is offered in Limited trim, disc brakes for all trim models. 1996- 2WD is offered in both Laredo and Limited, 6 and 8 cylinder models. 1998- 5.9 Limited is offered, and only has a single year of production. Jeep ZJ Produced from 1993-1995 Exterior Dimensions: Length: 176.7 in. Width: 69.2 in. Height: 64.9 in. Wheel Base: 105.9 in. Ground Clearance: 8.2 in. Curb Weight: 3574 lbs Interior Dimensions: Front Head Room: 39 in. Front Hip Room: 56.9 in. Front Shoulder Room: 58.2 in. Rear Head Room: 39 in. Rear Shoulder Room: 57.6 in. Rear Hip Room: 49.3 in. Front Leg Room: 40.8 in. Rear Leg Room: 35.7 in. Luggage Capacity: 40.1 cu. ft. Maximum Cargo Capacity: 80 cu. ft. Maximum Seating: 5 Performance: Base Number of Cylinders: 6 Base Engine Size: 4 liters Base Engine Type: Inline 6 Horsepower: 190 hp Max Horsepower: 4750 rpm Torque: 225 ft-lbs. Max Torque: 4000 rpm Maximum Payload: 1150 lbs. Maximum Towing Capacity: 5000 lbs. Drive Type: RWD Turning Circle: 36.6 ft. Optional Engine - 5.2 MPI V8 (MPI stands for Multi-Port Injection) Horsepower:220 Fuel Data: Fuel Tank Capacity: 23 gal. EPA Mileage Estimates: (City/Highway) for 6cyl Manual: 16 mpg / 21 mpg Automatic: : 15 mpg / 20 mpg Range in Miles: (City/Highway) Automatic: 345 mi. / 460 mi. Manual: 368 mi. / 483 mi. 1996-98 ZJ Dimension changes - (If not shown, it did not change) Exterior: Length: 177.2 in. Width: 69.3 in. Height: 64.9 in. Wheel Base: 105.9 in. Ground Clearance: 7.7 in. Curb Weight: 3926 lbs. Interior: Front Head Room: 38.9 in. Front Hip Room: 56.7 in. Front Shoulder Room: 59.2 in. Rear Head Room: 39 in. Rear Shoulder Room: 57.6 in. Rear Hip Room: 49.3 in. Front Leg Room: 40.9 in. Rear Leg Room: 35.7 in. Luggage Capacity: 40.9 cu. ft. Maximum Cargo Capacity: 79 cu. ft. Maximum Seating: 5 Performance for 6 cyl: Acceleration (0-60 mph): 8.6 sec. Braking Distance: 138 ft. Road Holding Index: .75 g Base Number of Cylinders: 6 Base Engine Size: 4 liters Base Engine Type: Inline 6 Horsepower: 185 hp Max Horsepower: 4600 rpm Torque: 220 ft-lbs. Max Torque: 2400 rpm Maximum Payload: 1150 lbs. Turning Circle: 37.5 ft. 1998 5.9 Limited Performance: (Available only in 1998) Performance: Acceleration (0-60 mph): 7.1 sec. Braking Distance: 135 ft. Road Holding Index: .75 g Base Number of Cylinders: 8 Base Engine Size: 5.9 liters Base Engine Type: V8 Horsepower: 245 hp Max Horsepower: 4000 rpm Torque: 345 ft-lbs. Max Torque: 3200 rpm Maximum Payload: 1150 lbs. Maximum Towing Capacity: 5000 lbs. Drive Type: 4WD Turning Circle: 37.2 ft. Fuel Data Fuel Tank Capacity: 23 gal. EPA Mileage Estimates: (City/Highway) Automatic: : 13 mpg / 16 mpg Range in Miles: (City/Highway) Automatic: 299 mi. / 368 mi. ZJ Axle, Transmission, Transfercase Info Axles: 93-98 I6 Grand Cherokee's D30 low pinion front axle Differential Location: Drivers side Stock axle splines: 27 (upgradeable to 30 splines) Lug Pattern: 5 on 4.5" Width: 60.5" from wheel mounting surface to wheel mounting surface Notes: Stronger than earlier D30's. Not a bad axle with 33" or smaller tires. The u-joints are the main weak point but can be easily upgraded. 93-95 uses "cj style, long pinion" gears. 96-98 uses "tj style, short pinion" gears. D35 c-clip rear axle Differential Location: Centered Stock D35 axle splines: 27 (upgradeable to 30 splines) Lug Pattern: 5 on 4.5" Width: 60.5" from wheel mounting surface to wheel mounting surface Notes: Not a bad axle with 33" or smaller tires if left open. Many people upgrade this axle with 30 spline axles and lockers. However you'd be better off swapping in a stronger axle like a Dana 44a or Ford 8.8. The weak part of this axle is the axle tubes. Under extreme pressure they flex which results in broken axles or pinion failures. 93-98 V8 (5.2L or 5.9L) Grand Cherokee's Dana 30 low pinion front axle Differential Location: Drivers side Stock axle splines: 27 (upgradeable to 30 splines) Lug Pattern: 5 on 4.5" Width: 60.5" from wheel mounting surface to wheel mounting surface Notes: Stronger than earlier D30's. Not a bad axle with 33" or smaller tires. The u-joints are the main weak point but can be easily upgraded. 96-98 uses "tj style, short pinion gears" 93-95 uses "cj style, long pinion" gears. 96-98 ONLY D44a "aluminum center section" rear axle Differential Location: Centered Stock axle splines: 30 spline shafts, no upgrades to spline count available Lug Pattern: 5 on 4.5" Width: 60.5" from wheel mounting surface to wheel mounting surface Notes for D44a: Not a bad axle with 33-35" tires, some care needed for the larger end, has been known to handle 37's with care. The aftermarket support is very limited for this axle due to the aluminum center section. The center section is very similar to the unit in the corvette. Many people replace the axle due to the limited gear ratio's available and the extremely limited availability of any traction device such as a locker. Transfercases: NOTE: NP stands for New Process, NV stands for New Venture. They switched names in the 90s for an unknown reason, but are the same company. NP242 used on I6 ZJs and WJs - This is known as SelecTrac NOTE: 93-94 V8 ZJ's had option of the NP242 Selec-Trac t-case. NP249 used on all V8 ZJs and was optional on 6 cylinder models - This is known as QuadraTrac. NP 231 used on various "heavy duty" ZJ - known as Command-Trac Also in 93-94 NP231 Command Trac was available with the I6's in SE's and Laredo 's. Transmissions 46RE: 4 spd. automatic transmission used in 1998 Jeep Grand Cherokees with 5.9L engines. 44RE: 4 sd. automatic transmission used in 1996 to 1998 Jeep Grand Cherokee's with 5.2L engines. 42RE: 4 spd. automatic transmission used in 1993 to 2002 Jeep Grand Cherokees with 4.0L engines. 46RH: 4 spd. automatic transmission used in 1993 to 1995 Jeep Grand Cherokees with 5.2L engines AW-4: 4 spd. automatic transmission used in some 1993 Jeep Grand Cherokee's with 4.0L engines.

10-16-2009, 02:09 AM	#2
Jones Infowars.com Join Date: Jan 2008 Location: Arizona Posts: 7,624 Profile Gallery Classifieds My Jeeps	Frequently Asked Questions / Write-ups Suspension / Tires Tire Size vs. Amount of Lift Chart Common Budget Boost "BB" Questions What do I need for a 5"+ lift? Puma's answer to the ZJ front swaybar issue! What is Death Wobble and How Can I Cure It? How do I assemble Addco swaybar end links? Swaybar Endlink Info Axles / Differentials How to replace an axle shaft and/or a wheel hub bearing assembly How to replace Ball Joints D44a Aussie Locker Install Warped Rotors (Front end vibrates when I apply the brakes) A really Good Gear ratio and transmission calculator Rebuilding a D44a axle Regearing Chart Engine / Transmission / Transfercase 46RE Rebuild 5.2 to 5.9 Swap ZJ Diagnostic codes There is oil in my breather. 4.0L Oil Filter Adapter O-ring replacement. Taurus E-Fan Conversion NP249, NV249 Viscous Coupling NP249 TO NP242 (or 231) SWAP NP242 Rebuild Tutorial ZJ Transmission Band Adjustment Swapping a 42RE for an AX-15 ZJ Fuse Panel Diagram / Power Distribution Center / PDC I just regeared or changed tire size on my ZJ, what speedometer gear do I need now? How do I replace the front crankshaft oil seal? How do I clean the IAC (Idle Air Control) valve? Superlift Truespeed Driveshaft Specs Saginaw Steering Box/Gear Rebuild How To Rebuild Your Saginaw ZJ Steering Gear Steering Box Adjustments - How To Fix your Floppy Steering Electrical http://www.jeepforum.com/forum/f197/how-change-dash-light-93-98-zj-767865/ My backup lights don't work or work intermittently. Power windows/locks stop working How Can I wire Fog lights up in a ZJ that didn't already have factory Fogs? Programming 93-95 ZJ's IR Keyless Entry Remotes Climate Control Diagnostic Mode Miscellaneous Passenger Floor Board Wet? Swampy Bypass fuel pump system conversion ZJ Fender Trimming Grand Cherokee Most Common Mods Commonly Used Acronyms How Do I Reset the Miles to Service Display? What are the Technical Service Bulletins for my Jeep? Where can I request my buildsheet? License Plate Mount for Roller Fairleads Custom Bumpers Fluids for the Grand Cherokee Fix that sagging door from 95GC Overhead console install on 93-95 ZJs Replacing the lift struts How to replace a ZJ sunroof seal How to remove cladding on 93-98 ZJ's Double cardan rebuild (writeup w/pics)

10-16-2009, 02:10 AM	#4
Jones Infowars.com Join Date: Jan 2008 Location: Arizona Posts: 7,624 Profile Gallery Classifieds My Jeeps	Commonly Used Links Hard-KOR Jeep Accessories by KevinsOffroad.com for Grand Cherokee, Wrangler, Liberty , Commander, and Cherokee IRON ROCK OFF ROAD Jeep Lift Kits and Suspension Products direct from Rubicon Express ZJ XJ WJ WK MJ TJ - Jeep Grand Cherokee and Cherokee SPECIALISTS! Rustys Offroad Clayton Off Road - Jeep Lift Kits - Jeep Cherokee Lift Kits - Jeep Wrangler Lift Kits - Jeep Suspension Lift Kits MallCrawlin HomePage www.nagca.com JeepWorld.com - Mopar Equipment - Jeep Parts and Accessories. Jeeps Are Us - Mopar Equipment - Jeep Parts and Accessories. Budget Boost Installation:

10-16-2009, 02:11 AM	#5
Jones Infowars.com Join Date: Jan 2008 Location: Arizona Posts: 7,624 Profile Gallery Classifieds My Jeeps	JeepForum.com Frequently Asked Questions How do I use the Search Function? Avatars, IMG tag, Custom Title and Attachments JeepForum.com Rules