In 1984 the first Jeep Cherokee (XJ) rolled off the assembly line. The New Jeep Cherokee specs where as follows:
Wheelbase length 101"
Ground Clearance 7.7"
payload 1150lbs
The design was rigid, strong and lightweight.The subframe permitted outstanding performance even with the smaller engine availible.
Engine options in 84-86.
2.5L I4 carburated - 105 hp @ 5000 rpm, 132 ft lb torque @ 2800 rpm - used in 84-85 models.
2.5L I4 TBI (fuel injected) - 117 hp @ 5000 rpm, 135 ftlb @ 3500 rpm - used in 86 and updated in 87-90 to 121hp.
GM 2.8L V6 - 115 hp @ 4800 rpm, 145 ft lb @ 2400 rpm - used in 84-86.
Renault 2.1L 4cyl. Turbo Diesel - 85 hp @ 3750 rpm, 132 ft lb @ 2750 rpm - used in 85-86.
Manual Transmissions
1984: Borg-Warner T4 4-speed manual, used with 2.5 L I4 only, 21 spline output
1984: Borg-Warner T-5 5-speed manual, used with 2.5 L I4 and 2.8 L V6, 21 spline output.
AX4 - 4 speed manual - manufactured by Aisin - used 84-86 with 2.5L I4 and 2.8L V6 engines, 21 spline output.
Automatic Transmissions
Torqueflight A904 - 3 speed automatic - used 84-86 with the 2.5L I4 and the 2.8L V6 engine.
Transfer Cases
The transfer cases used are all chain driven with aluminum housings. NP stands for "New Process" which is the brand, if you will. The newer ones are NV instead which stands for "New Venture". It is the same transfer case just a different name.
NP207 - "Command-Trac" part-time only - 2.61:1 ratio low range - used 84-87
NP228/NP229 - "Selec-Trac" - 2Hi - 4Hi(full-time) - N - 4Lo (part-time) - used 84-87
Driveshafts
Front Driveshaft - From 1984 to 1986 the front driveshaft was a CV style driveshaft. CV means " constant velocity Joint " which allow the driveshaft to transmit power through a variable angle at constant rotational speed.
Rear Driveshaft
The 228 and 229 transfer cases used a fixed output yoke, with a 2 piece driveshaft incorporating the slip spline. Otherwise, The rear is a one-piece shaft with standard u-joints at both ends. The slip yoke is located on the output shaft of the transfer case. On 84-95 models, the yoke slides in and out of the transfer case and is lubricated by the ATF fluid internally.
Front Axles
The Dana 30
Dana 30 high pinion - reverse cut - 27 spline, 1.16" diameter shafts, 7.13" ring gear - used 84-99 (some axles through 91 are vacuum disconnect, Most 84 thru 86 equipped XJ's were produced with constant velocity joints instead of Ujoints.
Rear Axles
The Dana 35 or the Crysler 8.25
Sometimes Dana 35 axles are referred to as Dana 35C - The "C" doesn't mean c-clip. It stands for "custom" meaning it came from Dana unfinished.
Note on 8.25 axles - none of these axles were used on XJs with ABS brakes. If you have ABS, you have the Dana 35. Without ABS you could have either axle.
Dana 35 non c-clip - 27 spline, 1.18" diameter shafts, 7.58" ring gear, 2.62" axle tube - used 84-89
Gearing
3.07 - used with 4.0L engine / manual transmission
3.31 - only available on 2 door XJs with "Fuel Economy" package
3.55 - used with 2WD 4-cyl engines (possibly 4WD as well) equipped with the 4-speed manual transmission.
3.73 - found in some XJs with the towing package
4.10,4.56 - used with 2.5L engine usually, and older XJs with the "Off-Highway Vehicle" package.
Suspension
Coil springs,control arms and two mono tube shocks in the front, leaf springs and two mono tube shocks in the rear. Each leaf spring pack contains 4 leafs.
Trim options
Base,Wagoneer,Pioneer,Chief,Laredo,
