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Thread: '90 240SX FS5W71C swap into '75 280z

  1. #1
    '75 280z tamo3's Avatar
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    Default '90 240SX FS5W71C swap into '75 280z

    I got 71B 5 speed bellhouse from one of my friends. I decided to move onto 240SX transmission swap into my 280z.

    First of all, bellhouse comparison. It looks like there are several different 71B bellhouse with a bit different pattern.

    This is my original 71B 4speed. It's written "L2"
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    This is the 71B 5speed bellhouse I got. It also written as "L2"
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    This is 240SX 71C bellhouse. It written 71B...
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    with some animal?

    I found some pic in internet that is written 71C for 71C bellhouse.
    Click image for larger version. 

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    '75/280z

  2. #2
    '75 280z tamo3's Avatar
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    Thanks for the people to share knowldge and experience of 71C swap information.

    http://atlanticz.ca/zclub/techtips/2...all/index.html
    http://zhome.com/ZCMnL/tech/240SX5spd/Transmission2.htm
    ハコスカ、Z、510に!!! O/H済みL型FS5W71C、2/3wコーンシンクロ〜
    ミッション加工
    すわ屋Newデモ車両昭和52年式 フェアレディZ S R1Z改

    Start grinding with hand belt sander. It quite easy to grind. Need to grind al least 2.5mm.
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    Got 16mm drill bit @ eBay. Drilling from front side of bellhouse is easiler.
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    done.
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    Forgot to order bearing.
    Parts number is
    32219-E9000 or 32219-E9020
    '75/280z

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    Here's another one - DSC04293JPGThumbnail1jpg id 266482 | Motortopia

    That bearing is difficult to remove. I had to rig up a cheap two prong gear puller with a clamp to get in to the small space available.

    Don't forget to put the transmission in to gear when assembling. It's possible to get it stuck in two gears at the same time when the bellhousing/fron case is pushed over the shift rods.
    1976 280Z, with some minor modifications

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    '75 280z tamo3's Avatar
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    Thanks Zed Head for great information.
    I didn't find that web site. That's really helpful.

    I rebuild 71B tranny before, so I know how hard to pull out the bearing :-)
    Quote Originally Posted by Zed Head View Post
    Don't forget to put the transmission in to gear when assembling. It's possible to get it stuck in two gears at the same time when the bellhousing/fron case is pushed over the shift rods.
    I will! Thanks!
    '75/280z

  5. #5
    Registered User EuroDat's Avatar
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    Quote Originally Posted by tamo3 View Post

    This is 240SX 71C bellhouse. It written 71B...
    Click image for larger version. 

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    with some animal?

    I found some pic in internet that is written 71C for 71C bellhouse.
    Click image for larger version. 

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    Strange that the 240SX tranny has 71B stamped on it?

    Yer, whats with the animal? Its on both. Looks like a kangaroe.

    Ill have to take closer look at mine. Its from a 300ZX so it a lotdifferent to the 71C out of the 240SX.

    Chas
    Chas
    5/77 280Z HLS30 403100 with some modifications
    Original colour: 305 Light Blue. The PO changed it to Red

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    Here's my 1985 300ZX (so I was told) bellhousing. Notice the fill plug below. It's the left hand side, and you can see how the case flares (like a bell).

    Are you sure that all of your pictures are bellhousing and not the back half? Hard to ell since they're all close-up.

    I have my transmission in the garage but didn't drag it out to see the other side.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    1976 280Z, with some minor modifications

  7. #7
    Registered User EuroDat's Avatar
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    I dug my 71C out from behind all the other junk I have been hoarding and took these photo's. Its out of a 84/85 model 300ZX with 83000km. Im not sure what the sticker means on the bellhousing. It also had a paper sticker on the side with "OK" in black text, but its now fallen off. Ill have to search for it.

    The V71C transmission has the 17mm wide gears and no reverse synchro.
    The RB71C transmission has the 20mm wide gears and reverse is synchro. If you hear the term "full synchro gearbox" that is what they mean.

    My tranny looks similar to Zed Heads tranny.

    Chas
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    Chas
    5/77 280Z HLS30 403100 with some modifications
    Original colour: 305 Light Blue. The PO changed it to Red

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    I have a sticker on mine also. Probably the elusive serial number. It would make more sense to use a sticker, stamp or engraving than to cast it in to the housing. Number applied when the unit is complete and passes inspection.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    1976 280Z, with some minor modifications

  9. #9
    '75 280z tamo3's Avatar
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    Thanks Chas for the info.
    Sounds like s14(Kouki) has RB71C tranny with 20mm synchro.

    Zed Head,
    What you said totally make sense regard to the sticker.
    '75/280z

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