CV End Float - Shim Naming Convention / Chart?

[_ExpeditionMan]

Currently going around the truck to prep for a big trip. Going to check end float on the hubs and the CVs. Specifically looking at the CVs it is clear I need a shim variety of shims if I am going to properly address the end float. However, as far as I can tell there is no aftermarket or genuine kit with a variety of shims.

According to this video you can order a variety of shims but Paddock Spares and other sites show part numbers but no reference to thickness or diameter. Anyone have a chart, diagram, or other resource to decode these part numbers and find the appropriate thicknesses?

Secondly, the RAVE specified end float is 0.08-0.25mm, however the shims shown at Rover's North (see here) range from 0.45-1.65mm in thickness. Wouldn't this suggest that I need thinner shims?

 

[_ExpeditionMan]

Shim P/N	Thickness (mm)	Note
FRC6782	0.45
FRC6783	0.6
FRC6785	0.9
FRC6786	1.05
FRC6787	1.2
FRC6788	1.35
FRC6789	1.5
FRC6790	1.65
549473	n/a	Axle Shaft Circlip

 

[discostew]

If your using rave to do this job you should download a copy of the workshop manual. Totally different document and way more geared to what your doing.
It probably identifies those shims in a chart.

 

[_ExpeditionMan]

If your using rave to do this job you should download a copy of the workshop manual. Totally different document and way more geared to what your doing.
It probably identifies those shims in a chart.

Are those not one in the same? The document I am using is titled Workshop Manual.

 

[discostew]

Rave is different than the actual workshop manual. RAVE is hard for me to navigate for some reason. I have it but rarely look at it.

 

[discostew]

To be honest I have never measured the end float. I was thinking about doing it this time for the truck I'm putting together. .08 to.25 mm is a pretty big and forgiving spec. My rule of thumb is I don't want it real tight, just a little endplay. Have you set up the swivel housing preload?

 

[_ExpeditionMan]

To be honest I have never measured the end float. I was thinking about doing it this time for the truck I'm putting together. .08 to.25 mm is a pretty big and forgiving spec. My rule of thumb is I don't want it real tight, just a little endplay. Have you set up the swivel housing preload?

I've never done it and havent torn down to it. Honestly it seems intimidating.

I'll let you know how the CV end float adjustment goes. Definitely had more play on the passenger side.

 

[discostew]

I was asking because if you haven't got everything else set up then this is kind of picking pepper out of flyshit. Just put it back together with the shims that it had in it.

 

[_ExpeditionMan]

I was asking because if you haven't got everything else set up then this is kind of picking pepper out of flyshit. Just put it back together with the shims that it had in it.

Why? Preload on the swivel housing bearings is different than end float at the CV. Would rather one be in-spec then both be out.

 

[discostew]

End float of the axle is almost irrelevant compared to swivel housing preload. If you stick the old shims in it I'm pretty sure it would be less than.25 of a mm.

 

[_ExpeditionMan]

End float of the axle is almost irrelevant compared to swivel housing preload. If you stick the old shims in it I'm pretty sure it would be less than.25 of a mm.

Can you explain why? Not being an ass, genuinely curious. I'll definitely test it to see.

 

[discostew]

Your talking about a setting that is basically just a little endplay when you put that snap ring on that shaft. So they want that splined shaft to not be tight. Just a little endplay. It's not that critical and I'm not sure I have ever seen that cause a problem.
I just make sure they move a little bit and I'm sure that's less than .25 of a mm

 

[WaltNYC]

In the case of a D1 (which is in your signature)

OK, I reviewed RAVE and see that you are actually quoting specs for the 'Drive shaft end play', which is just another way of saying how much the end of the drive shaft moves inward or outward. The shims are really thin washers that go on the shaft prior to fitting the circlip.

The hub end float is adjusted by the torquing the hub nuts on the wheel bearings.

Shaft end play is not a bid deal if not excessive.

Hub end float (as it relates to bearing health and initial set up) is far more critical.

 

[discostew]

No I think hes talking about where the stub axle sticks out of the drive plate at the hub. You put the shims on, then the c clip, then that rubber boot snaps on the end.

 

[_ExpeditionMan]

Discostew is correct. See this video for the process I am referring to. Although the hub end play is on the to do list as well.

 

[_ExpeditionMan]

Following up on this. Ordered a bunch of adjustment shims. Both CVs needed to be brought within the 0.08 to 0.25mm end float requirement. The drivers side was obviously missing a shim and had nearly 0.40mm in endfloat. The passenger was within tolerance but just barely so I adjusted it accordingly.