6 replies to this topic

[seria]

Hi,
Driveshaft flange end cover bolt torque. Is 40 lbf ft correct? Is there any sequence to torque it up?
Thanks.

[Guess-Works.com]

if you are talking about the flange to disk bolts on an 8.4" setup then 42lbft, and I would do them up as you would wheel nuts, corner to corner with a ratchet, then torque them up.

[seria]

Thanks JG. I am not good in mini parts terms. So I don't know what you mean by "flange to disk bolts on an 8.4" setup". Please explain, I am learning. I have taken pictures of what I call "driveshaft flange end cover" or maybe "differential cover". Yesterday I torque it up to 25 lbf ft. Obviously I am chicken out and therefore need your help.
Here is the picture of the flange (I have already change the oil seal).
Thanks.

Attached Files

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[Guess-Works.com]

ah, ouput flange covers on gearbox... no where near 40lbft, and even @ 25 too much, undo them and torque to 18 lbft.

You should also check the endfloat on the diff bearings if these have been removed...

[seria]

Please advise how do I check the endfloat on the diff bearings. Well how does it look like.
Thanks.

[Guess-Works.com]

First the diff assemble must be push as far possible to the right ( looking from the back ) in the housing, then install the RH end cover with gasket (not forgetting the O ring on the selector spring ), tighten and torque.

Install ALL the diff shims which were already present and locate the LH end plate without gasket, and do up 2 or 3 bolts finger tight. There should be a gap between the plate and diff housing which needs measuring with a feel gauge... The gap must be 11 thou. If there is no gap or the gap is < 11 thou' then add shims necessary to make th gap up to 11 thou, if > 11 thou then remove shims as necessary.

Once correct distance, or preload, has been found undo the end plate, and add new gasket, and torque up the end cover... the gasket accounts for 7 thou of the gap, the preload on the diff bearings is 4 thou.

[seria]

wow.. I have tighten and torque the LH end plate with the gaqsket on. Well, it looks like, I am going to loosen the LH end plate and do as per your above steps. I will do it tomorrow. My gasket is 0.4mm thick. Will this be ok?
Thanks.