GX470 Driveshaft travel measurement needed

[cruisermatt]

Hi all, just a quick tech question.
How much travel does a GX470 rear driveshaft have? From full compression to an inch or so of spline engagement?

Also, do the front and rear driveshafts use the same components? Same slip yoke, u-joints, yokes etc?

Thanks

 

[cruisermatt]

No one has five minutes to crawl under their truck with a tape measure ?

 

[cruisermatt]

Bump

 

[GXO]

They are different as I recall. Very hard to get a shop to rebalance or rebuild a Lexus DS. I am away so no measurement. I do know the shafts are considerably cheaper than LC. I think I spent $700 for both brand new.

 

[cruisermatt]

Thanks.
None of that is really helpful information though.

 

[GXO]

What are you trying to do? I have rear long travel and never had an issue with a stock driveshaft.

 

[cruisermatt]

What are you trying to do? I have rear long travel and never had an issue with a stock driveshaft.

I built my front suspension into a shackle reversal configuration with long soft springs. I need a driveshaft with at least 6” of slip yoke.
I have heard rumors that 4Runner/GX470/Pickup slip yokes have more travel then Cruiser stuff. I can’t find any actual data to back this up or show the contrary.

Of course you don’t have an issue, your rear suspension is a 4-link. It’s sort of a parallelogram.
Driveshafts don’t need a lot of slip travel in a link suspension.

 

[GXO]

I have an old stock driveshaft downstairs. Will try to get you a measurement today.

 

[cruisermatt]

I have an old stock driveshaft downstairs. Will try to get you a measurement today.

Any luck on this?

 

[GXO]

I'm traveling for work (a lot) with teens at home. Will be back weds. Should get it Thursday.

 

[GXO]

About 3.25"

 

[James C]

@Vlad I remember you mentioned in some other thread (couldn't find it) that the updated 120 series driveshafts that don't have grease zerks have a larger grease reservoir (or something?) to help fix driveshaft clunk/thud.

Question - even if someone was diligent about greasing, is the new updated version still better than the old one?

 

[GXO]

The updated design does not clunk. I've been running it for a few years now and still nothing with minimal greasing.

 

[James C]

The updated design does not clunk. I've been running it for a few years now and still nothing with minimal greasing.

Great. And that's only greasing u-joints, right? Slip yoke is fine without greasing?

I don't have clunk now, but we do play in the water every so often and I like to be able to grease things if I can.

 

[GXO]

Everything needs grease... That's why they have zerks

 

[James C]

Oh, man, for some reason I thought the new ones didn't have a slip yoke zerk! Question nullified.