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Thread: Perentie 6x6 LT95 Gear box

  1. #1
    PerentieNZ Guest

    Perentie 6x6 LT95 Gear box

    Hi Guys,

    Can anybody tell me if part number FRC9392 with is the High Gear from the transfer box will fit the Perentie LT95 6x6 gearbox?

    Best place to source this part? Would you recommend sticking with LR part or after market.

    Need to get one asap as the truck is up on hoist.

    Cheers

    KD

  2. #2
    Bearman's Avatar
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    Unhappy

    Quote Originally Posted by PerentieNZ View Post
    Hi Guys,

    Can anybody tell me if part number FRC9392 with is the High Gear from the transfer box will fit the Perentie LT95 6x6 gearbox?

    Best place to source this part? Would you recommend sticking with LR part or after market.

    Need to get one asap as the truck is up on hoist.

    Cheers

    KD
    That is the correct part number for the hi range gear on the intermediate shaft. The gear it mates with on the centre diff is FRC4032. You will be lucky to find an aftermarket one. Genuine LR ones will cost you around $1K.
    Cheers......Brian
    1985 110 V8 County
    1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)

  3. #3
    PerentieNZ Guest
    Quote Originally Posted by Bearman View Post
    That is the correct part number for the hi range gear on the intermediate shaft. The gear it mates with on the centre diff is FRC4032. You will be lucky to find an aftermarket one. Genuine LR ones will cost you around $1K.
    Hi,

    The high gear from the Perentie has roller bearings and a machined space for bearing and the ordinary LT95 gear has needle bearings and different centre shape/size.

    So the ordinary LR part will not fit in Perentie box unless you go back to needle bearings, correct?

    Just want to make sure I get the right part?

    Cheers

  4. #4
    Bearman's Avatar
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    Quote Originally Posted by PerentieNZ View Post
    Hi,

    The high gear from the Perentie has roller bearings and a machined space for bearing and the ordinary LT95 gear has needle bearings and different centre shape/size.

    So the ordinary LR part will not fit in Perentie box unless you go back to needle bearings, correct?

    Just want to make sure I get the right part?

    Cheers
    That part number is the correct one for the TRB shaft on the perentie. And no the standard one will NOT fit in the perentie even if you change the bearings. You would have to change the complete intermediate shaft and you don't want to go that way!!
    Cheers......Brian
    1985 110 V8 County
    1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)

  5. #5
    PerentieNZ Guest
    Hi Bearman, I now have the gears needed, thanks for your help! Do you know the torque settings for the intermediate shaft bolt? Cheers

  6. #6
    Bearman's Avatar
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    Quote Originally Posted by PerentieNZ View Post
    Hi Bearman, I now have the gears needed, thanks for your help! Do you know the torque settings for the intermediate shaft bolt? Cheers
    125 - 140 ft/lb is the figure for the intermediate shaft bolt. If you have added new bearings and gears you had better check the preload on the gears in a vice before putting it in the vehicle. The original shim may not be correct now.
    Cheers......Brian
    1985 110 V8 County
    1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)

  7. #7
    PerentieNZ Guest

    Intermediate shaft bolt

    Quote Originally Posted by Bearman View Post
    125 - 140 ft/lb is the figure for the intermediate shaft bolt. If you have added new bearings and gears you had better check the preload on the gears in a vice before putting it in the vehicle. The original shim may not be correct now.
    Hi Guys,

    I have torqued the shaft bolt up to 125 Ft/lb with the largest shim 4.6mm FTC397 and it appears i need to space it out more. Have just replaced output and high gears.

    The shims start at 3.5mm so i can not double up on a smaller shim, whats the trick here, can you take a very thin shim (which one, make, part number) and put the two together??

    I have a feeling this all started from the shaft bolt not being torqued to correct spec originally as it was jumping out of high!!!

    Cheers

  8. #8
    Bearman's Avatar
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    Quote Originally Posted by PerentieNZ View Post
    Hi Guys,

    I have torqued the shaft bolt up to 125 Ft/lb with the largest shim 4.6mm FTC397 and it appears i need to space it out more. Have just replaced output and high gears.

    The shims start at 3.5mm so i can not double up on a smaller shim, whats the trick here, can you take a very thin shim (which one, make, part number) and put the two together??

    I have a feeling this all started from the shaft bolt not being torqued to correct spec originally as it was jumping out of high!!!

    Cheers
    FTC399 which is 4.8mm is the biggest shim available and I have found from experience that you usually need this one to obtain the correct preload. I have never used one less than 4.5mm. You can use your current shim to make another small one out of shim material (.2mm)instead of buying the larger one. Unfortunately you can't use 2 of the smallest shims (3.5mm) I haven't done one yet that needed 7.0 mm. Make sure you have seated the bearing races fully in the gears you have replaced. How worn was the plug the bolt threads into that fits into the front of the transfer case? A loose bolt will allow the bearings to rotate and wear grooves into the plug and it then requires a bigger shim, machining to remove the grooves or replacing if it is worn too much. The correct preload is when you can easily rotate all of the gears by hand when you have the bolt fully torqued. Another way to fix it if you don't have access to shim material is to remove a bearing race from the centre input gear and machine or sand it down on a belt sander or lathe.
    Cheers......Brian
    1985 110 V8 County
    1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)

  9. #9
    PerentieNZ Guest
    Thanks Bearman, get it back on the rd tonightPerentie 6x6 LT95 Gear box

  10. #10
    Bearman's Avatar
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    Did you get it all sorted?
    Cheers......Brian
    1985 110 V8 County
    1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)

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