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Thread: amc v8 into a yj frame

  1. #1
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    amc v8 into a yj frame

    im currently installing an amc v8 into my cj7 that has a yj frame.
    before i weld the engine mounts to the frame rails. i would like some opinions on the space needed for a electric fan ex(ford taurus).


    i currently have 2" between the radiator and the mechanical fan mount.


    my rear drive shaft length currently is 27.5" from center to center.

    if i have to move the engine back ild rather do it before i weld it into place obviously...


    thanks for your opinions.

    ---------- Post added at 08:16 PM ---------- Previous post was at 08:14 PM ----------

    also if anyone has a pair of waggy dana 44 axles passenger drop let me know thanks

  2. #2
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    The taurus fan is about 5" deep, but you may be able to shave some of the shroud.

    If driveshaft length is not an issue, try to get the engine as far back as you can to center the weight better in the vehicle
    Attached Thumbnails Attached Thumbnails wmimg_0661.jpg  
    Last edited by Pav1; 03-30-2011 at 08:33 PM.

  3. #3
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    how far is to short for a rear drive shaft?
    i always thought longer was better
    if i move the engine back say 2" that would give me 4"+ is the mechanical fan bracket removable. didnt want to hit it incase i damaged anything.
    if it is i would have about 6" of space for my fan.

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    The aluminum spacer on the water pump pulley can be removed and then install short bolts.

    It looks (from the pics) like a taurus fan will fit with where your at.

    A longer driveshaft is definitely better.

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    should i move it back an inch or two just incase?

    what should be done about the skid plate? the tranny mount is 4" higher than the bottom of the transfercase. so im gunna have a lump sticking out of the skid plate 4" lower. thats gunna make a great rock catcher

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    Get a hold of the fan you will use and leave 1/2" gap to the pulley for movement and twist.

    What's the spacing between the transfer case and the skid plate???

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    Ill have to measure my fan when i get home but i shaved alot off. im guessing it was only 3" thick. as for drive shaft a 16" drive shaft is common in tj's as long as you have the appropriate travel and a good SYE you should be fine, assuming your not lifting it to the sky. as for the tcase is ther any way you can clock it? i have no idea what your using, but i think DVS use to sell clocking rings for the 300 if not him im sure TMR should be.
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    Opps, wasn't looking at the pics closely enough.

    I didn't know you were using the complete cj driveline.

    You're driveshaft won't be too short as stated above if you're not going with a huge lift.

    Clocking up the transfer case and running a flat skid plate is a great idea.

    I'm assuming you have a t176 transmission???

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    i have a t-5 and a t-150 with a dana 300 on both. the t-5 has a input shaft of 1 1/8" wide and 10 spline the t-150 is 10 spline 1 1/8" wide. how hard would it be to swap the t-150 to my bellhousing?

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    Could you double check the transfer cases? I didn't think a t150 bolted to a dana 300. Are you sure it's not the t150/dana 20 combo???

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    dana 18 only wont fit a 300 t150

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    so it must be a dana 18 or dana 20 attached to the t150

    But remember, the dana 300 is a better transfer case

  13. #13
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    yea its a dana 20. so im sticking with the t-5 dana 300 combo. spot welded the engine to the frame rails. have to take it to the local welder to burn it in place. next up is making a skid plate. not sure if i have the space to clock the transfer case. its about 10-12" shorter than the ax5 np231 length. so its inbetween the foot wells. not sure what to do about that.

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    What's your intended use, tire size etc. The T5 won't live behind the 6 let alone a v8 in offroad use and larger tires. Upgrade to a stronger tranny now to save yourself a lot of time and money. Just because these are what you have doesn't make them the right choice. If you give me some details I could help you with what might be some stronger budget friendly options. By the way the Dana 300 is a better choice for low range gearing for sure. The dana 20 is fine for strength it just doesn't have as low a gear. The T150 is much stronger than the T5 but again gearing is poorer.
    Don't let fear and common sense get in your way.

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    you will need to cut out a bit of floor to clock it flat. a bit of a body lift will lessen the amount of floor you need to remove.

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    going with a 360 possibly 401 if i can find one. i knew the t-5 was weak. was why i was looking into the t-150. what are better trannys that will bolt up and still use the dana 300? i currently have 27.5" of rear drive shaft. still need a pair of waggy dana 44s. tires will probably be around 35". 4" of lift plus some trimming of the sheet metal. was trying to stay away from body lifts.

    do you need insurance if your flat towing with a tow bar?

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    a t176 four speed may be the best bet price/easiness wise. What engine is that you're using for a mock up???

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    304 v8

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    i have the axles u want let me know if u want to come look at them

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    what are you asking for them?

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