| First thing you need to decide is the intended use of | | | | engines came with the medium duty AX5 |
| your Jeep. With today's gas prices every bit counts. | | | | transmission and the same NP231 transfercase. A bit |
| If you're looking for a little freedom drive and small | | | | harder on gas and pocket book, this engine is what |
| commutes in town, the 4cyl engine will do you fine. If | | | | most look for as it has the guts on the highway |
| you travel frequently on the highway or interstate | | | | interstate. They also come plenty in automatic and |
| definitely need the 6cyl. Either engine will do fine | | | | standard transmissions. A good catch in the 6cyl |
| off-road with the gearing provided by the | | | | model is the heavy duty Dana44 rear axle that you |
| transfercase. If you are looking for a project budget | | | | can stumble upon in Jeeps that came with towing |
| Jeep for off-roading that will get a new engine then | | | | package. These rear axles can handle more abuse |
| you still have the engine to consider as it will affect | | | | then the stock Dana35. |
| your bottom line; 4cyl engine Jeeps are cheaper. | | | | Unfortunately Jeep Wranglers did not come from |
| Since this is about Wrangler or YJ Jeeps we won't | | | | factory with a V8 so if you come across one for |
| touch the others at this time. In 1991 Jeep introduced | | | | sale take a good look at the engine harness and ask |
| the fuel injected 4cyl engine. It pushes out 123hp and | | | | lots of questions. Last thing you want to do is inherit |
| 139ft/lbs of torque. Transmission and transfercase | | | | someone else's problems. We will go deeper on this in |
| with this engine is the AX5 and NP231. The AX5 is a | | | | another article. |
| lightweight transmission and when you test drive you | | | | So you have a lot of choices. Best to be educated |
| will want to verify smooth shifting from 2nd the 3rd | | | | and know what you are looking at so you can make |
| gear as they are known for bad sychro's (aka | | | | an informed decision. The buying decision will be |
| grinding will occur). The NP231 is a chain driven | | | | totally different between someone looking for a |
| transmission and will stand up to any abuse you will | | | | cruiser or and offroading project. As they say: "Your |
| throw at it with the 4cyl and has a respectable 2.71:1 | | | | mileage may vary" |
| reduction for off-roading. If you're looking for a town | | | | This part three of a six part series I'll write. |
| putter, easier on gas, able off-roading and open air | | | | Stay tuned for: |
| driving to the beach this is for you. Best thing about | | | | - How to accessorize your Used Budget Jeep |
| these engines is the price, but if you want an auto | | | | - How to build a mild off-roading Used Budget Jeep |
| they will be gutless and hard to find. | | | | - How to upkeep your Used Budget Jeep |
| Also in 1991 Jeep had the 6cyl as an option or | | | | Hope this was informative and helps you discover the |
| standard depending on the model. The 6cyl Jeep | | | | Jeep addiction. Keep it Jeep! |
| engine put out 185hp and 220ft/lbs torque. These | | | | |