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JD1954
Bone Stock
Posts:3
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| 10/19/2007 7:30 PM |
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| Got a 1991 Jeep that I have be |
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sammy 87
Street Queen
Posts:107
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| 10/21/2007 5:19 PM |
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the axle from front to rear are different the front of the cherokee doesnt have lock outs and they arent compatialbe unless you can some how use the cherokee knucle on your cj i wouldnt suggest it because the lock out hub has a better design bering wise and price too the cherokee uses a complete hub and bearing unit that cost 150.00 per unit the cj bearing might cost you 10.00 a bearing at max.the carriers in the cherokee has ashorter carrier than the cj and you will break your ring gear if you put it into 4x4 and clanks in 2x4.
I had the same idea i had a cj dana 30 lieing arount and it tried to swap parts but i made it worse now I have to buy a new ring and pinion be cause I chiped a couple of theeth off.
the rears shoud be different too the cherokee either has a dana 35 or corprate rearend the cj either has dana 20 or dana 44 neither one of the vehicals have inter changable parts in the rear ends nor transfer case. what kind of tranny came in the cherokee auto or manual |
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JD1954
Bone Stock
Posts:3
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| 10/21/2007 8:43 PM |
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| Thanks for the info -- the cherokee has a manual 6 cyl -- just getting started on the 83 CJ 7 project -- have most of the parts, a newer frame and tub, just thought could cut the time in half switching out axels. This is a project to learn on and it definitely is providing that -- got to get the frame ready to go and start with the axels, suspension, then move on, already have the rebuilt engine ... |
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sammy 87
Street Queen
Posts:107
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| 10/21/2007 10:48 PM |
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| you know you could probly put the Inline 6 out of the jeep cherokee and computer I pretty sure the cj7 came stock with dana 300 witch is im my opinon one of the best jeep tcase besause it so strong and gear driven. I think there is a way to back it up to the cherokee tranny then you would have fuelingection, 5speed tranny,and a strong tcase and 44in the rear is agreat start in my opinon.I know what it like having some parts lieing around and hoping maby they will fit. so you dont have to morgage the house for what you want or need. |
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yoda
Bone Stock
Posts:0
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| 10/22/2007 7:23 PM |
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Do you know what rearend is under the CJ? Does it have a perfectly round cover or is it flat on the sides and curved on top? If it is perfectly round it is a Dana 20, if not its a Dana 44. I agree with the previous post, your Jeep did have a Dana 300 T-case in it when stock, hopefully its still under there. Reuse that case for sure! As for the 5 speed out of the Cherokee, I would probably pass on using it, they aren't very strong and gearing isn't that great. Does the motor in the Cherokee still run? If its a 6 cyl then its a fuel injected 4.0 and i would definately use it over the 4.2 from the CJ. Other than that, you can't use the Dana 30 front from the Cherokee for the CJ, it has a center disconnect(junk) and is a driver side pumpkin that is not compatible with a Dana 300, unless you want to buy a Dana 300 flip kit, and that wouldn;t be worth. Other than that, I don't know what else you were thinking about using.
good luck Yoda |
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SnoMan
Lift & Lockers
Posts:943
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| 10/22/2007 7:38 PM |
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| I disagree on the tranny. A 91 would have had a Asian AX15 which is not a bad tranny and it was used though 2000. I would place it well above a T4 or T5 that could be in a 83 CJ. I would even place it above a T176,177 or 178 MD Tremec Mexican made Ford tranny because it has a deeper first gear and OD too. The AX15 was also used by Toyota for a lot of years in a different case that is not interchangeable with Jeep AX15 and Yota back then never used bad trannies. |
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yoda
Bone Stock
Posts:0
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| 10/22/2007 7:45 PM |
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| I disagree Snoman, if I'm building a CJ from the ground up as this gentleman clearly is, I wouldn't put an AX-15 in it! Especially if I were backing it up with a Dana 300. Why spend all the money on the adapter to mate the two when there are much better transmissions available? T-18, SM465, SM 420, NP435 etc. I guess if the Jeep is a daily driver then sure, but if its gonna see trail duty and limited street driving, go with a strong tranny that gives you the gearing you can use. |
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sammy 87
Street Queen
Posts:107
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| 10/22/2007 9:32 PM |
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| Doesnt the dana 300 have a 6 bolt pattern like the 231 because how do the flip kits bolt up to the newer trannys and the 5 speed really is nice driving on the road if he was to take it on the road. The dana 300 does have the 6 bolt pattern by the way I just checked on http://www.downeastoffroad.com/.
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SnoMan
Lift & Lockers
Posts:943
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| 10/23/2007 3:44 AM |
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quote:
Originally posted by yoda
I disagree Snoman, if I'm building a CJ from the ground up as this gentleman clearly is, I wouldn't put an AX-15 in it! Especially if I were backing it up with a Dana 300. Why spend all the money on the adapter to mate the two when there are much better transmissions available? T-18, SM465, SM 420, NP435 etc. I guess if the Jeep is a daily driver then sure, but if its gonna see trail duty and limited street driving, go with a strong tranny that gives you the gearing you can use.
I think you are missing the point here. If I was building it with a big V8, I would not use a AX15 (I would use a NV4500) but with a 6, the AX15 will hold up fine. People that have trouble with AX15's, never change the lube in them or they run tall gears with big tires and place a lot of strain on tranny. The beauty of a OD tranny like a AX15 is that it lets you use some serious gears like 4.88's or 5.13's or deeper still for better off road performance and traction and still have a OD for a nice top gear on or off road. Some seem to work with the mentality that you run taller gear and a deeper Tcase or tranny to make up for improper overall effective final drive ratio but this scenario increases overall drive line strain and chassis twist under torque. Your axles are your strongest reduction units, use them wisely and properly for maximum off road performance. Also the AX15 weighs less than a the above trannies too and weight is not a plus on the trail. When I started building 4x4 in the 70's, we did not have OD's trannies to work with but I certainly wished we had. |
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webby4x4
Forum Admin, Magazine Editor
Rock Star
Posts:2375
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| 10/23/2007 9:22 AM |
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If I was using the Jeep for general purpose duty (e.g. plowing snow, taking an easy off-road trip once per month, hauling the kids to soccer, etc.), I might suggest the AX15 also, if it was laying around in my shop. However, I've seen two of them grenade now, both of which were on moderately built Jeeps with 33" tires and a single locker. Yeah, I know... you could dispute or argue that it was neglect, but that would be an assumption now, wouldn't it? :)
I agree with Jody in that, if you're building a Jeep from the ground up, why settle for mediocraty? If you're building something from parts, why not build something that can be upgraded later, or take the punishment of some future upgrades such as deeper gears, bigger tires, more horsepower???
For the same price, you can get a bolt-in transmission with far deeper gearing, one that can take the punishment of off-roading, and can offer better aftermarket support. Not to mention, that most people who build off-road rigs from the ground up, are never satisfied with their first-round changes. Since very few people have an unlimited budget, most people start off moderate, and go big later, as the off-road bug bites them.
This means any investment you can make into the foundation (e.g. drivetrain) of a rig, will pay off in spades later. You won't be sorry if you run a better transmission than an AX15 (e.g. SM420, SM465, NV4500, etc.), but you certainly would be sorry if you ran that AX15 and later upgraded to big horsepower and/or bigger meats.
Rick |
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Rick Webster
Editor, 4X4REVIEW.COM - A Tork Media, Inc. Publication
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'74 FJ40 Land Cruiser
"Measure once, cut twice" |
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SnoMan
Lift & Lockers
Posts:943
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| 10/23/2007 9:32 AM |
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quote:
Originally posted by webby4x4
If I was using the Jeep for general purpose duty (e.g. plowing snow, taking an easy off-road trip once per month, hauling the kids to soccer, etc.), I might suggest the AX15 also, if it was laying around in my shop. However, I've seen two of them grenade now, both of which were on moderately built Jeeps with 33" tires and a single locker. Yeah, I know... you could dispute or argue that it was neglect, but that would be an assumption now, wouldn't it? :)
I'll beat that you did not have some nice 4.56 or 4.88 gears behind that gear box with those tires plus had you regularly changed the lube in them? Many never change lube even once. Even a 4.88 only looks like about a little more than 3.73 in OD with a AX15. Proper axle gearing is important to lowering average tranny torque loads |
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Visit the SnoMan at
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JD1954
Bone Stock
Posts:3
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| 10/24/2007 7:27 PM |
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| The tranny in the 83 CJ I believe is a T-5 -- by the case numbers it is from 84 mustang or capri -- V8 -- number on case is borg warner 13-52-065-901. The rear end is a Dana -- don't remember which one. Need to get out there and look. Time to winterize the bikes and put them up for the cold season (fair weather rider), and we are remodling a bathroom right now, but the jeep keeps calling ... thanks! |
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webby4x4
Forum Admin, Magazine Editor
Rock Star
Posts:2375
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| 10/24/2007 7:31 PM |
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JD - if you take a few pictures of the tranny and axles and post them here, we can help you identify what they are.
Rick |
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Rick Webster
Editor, 4X4REVIEW.COM - A Tork Media, Inc. Publication
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'74 FJ40 Land Cruiser
"Measure once, cut twice" |
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SnoMan
Lift & Lockers
Posts:943
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| 10/25/2007 3:44 AM |
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quote:
Originally posted by JD1954
The tranny in the 83 CJ I believe is a T-5 -- by the case numbers it is from 84 mustang or capri -- V8 -- number on case is borg warner 13-52-065-901.
It is a T5. No picture needed. The presence of the Borg Warner name and the part number confirms it. The 13-52 in the beginning of it is a T5 part number. In the scheme of things it is considered a LD unit vs the AX15 being rated MD. Input and output spline are the same an there would be no big headaches swapping in the AX15 for what it is worth. |
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