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JRscooby
Indepmo
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Mike134 wrote:You won't have any problems.
I own a '72 Cutlas that sits for months at a time then gets driven to a car show or just taken out for a trip. Haven't looked at the front wheel bearings in 5 years. No need to. My fellow classic car enthusiasts feel the same way.
Only on forums will you find fear mongers
Just my 2 cents
Just for snots and grins, compare the weight on the axle of that A body to weight on trailer axle. Now look at size of bearings.
IIRC, from '68 at GM training center there was a time and mileage for wheel bearing service. Most times dealers did bearings when did the brake shoes
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prichardson
Lafayette, La
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I would be more concerned about the tire age. If they are ST series and near or beyond 5 years by date code; I would change them. If you are not familiar with it, the date code is a 4 digit number molded in the sidewall of the tire indicating the week and year and manufacture. The first two are week and second year ie a tire manufactured last week would show 3122.
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Turtle n Peeps
California
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klutchdust wrote:"Used to be, likely still applies, not a good idea to mix different types/brands of grease. "
I would really like to see some proof or research/testing done by a reliable source to back up that statement. Having serviced hundreds of semi trailer units and not knowing what grease was used previously, it was a rarity, rarity that a bearing in our fleet of over 10k units ever had a bearing failure. A bearing was only serviced when the unit was brought into the shop for a brake change. That could be anywhere from 1 year or 5 years. Servicing wheel bearings every year is just nonsense. I call malarky on that one.
Mixing different types of grease a no-no.
Mixing grease types might have caused airplane crash.
I totally agree with you on the every year nonsense. I inspect my trailer every 7 years and found out I have to service them about every 10 years. Even then I mostly have to deal with brakes and hardware only.
~ Too many freaks & not enough circuses ~
"Life is not tried ~ it is merely survived ~ if you're standing
outside the fire"
"The best way to get a bad law repealed is to enforce it strictly."- Abraham Lincoln
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MFL
Midwest
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Joined: 11/28/2012
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klutchdust wrote:"Used to be, likely still applies, not a good idea to mix different types/brands of grease. "
I would really like to see some proof or research/testing done by a reliable source to back up that statement. Having serviced hundreds of semi trailer units and not knowing what grease was used previously, it was a rarity, rarity that a bearing in our fleet of over 10k units ever had a bearing failure. A bearing was only serviced when the unit was brought into the shop for a brake change. That could be anywhere from 1 year or 5 years. Servicing wheel bearings every year is just nonsense. I call malarky on that one.
Whoa Klutch...tell us that you did not MIX the new clean grease, right into the old dirty grease, in all those semi-trailer bearings!
Jerry
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klutchdust
Orange, California
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Joined: 06/09/2004
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opnspaces wrote:I would go on vacation and not give it a second thought. A repack every year is way overkill. I think I have repacked mine every 5 years possibly more.
And when you did, how did they look?
my guess is, they looked pretty good, but since I have the wheel off......
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Mike134
Elgin, IL
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Joined: 11/20/2019
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JRscooby wrote:Mike134 wrote:You won't have any problems.
I own a '72 Cutlas that sits for months at a time then gets driven to a car show or just taken out for a trip. Haven't looked at the front wheel bearings in 5 years. No need to. My fellow classic car enthusiasts feel the same way.
Only on forums will you find fear mongers
Just my 2 cents
Just for snots and grins, compare the weight on the axle of that A body to weight on trailer axle. Now look at size of bearings.
IIRC, from '68 at GM training center there was a time and mileage for wheel bearing service. Most times dealers did bearings when did the brake shoes
inner bearing about the same the outer bearing on the Cutlas is smaller. Weight per wheel about equal 1200lbs 455CI weighing them down (smiles)
By chance you're not one of those that does an oil change every 3000 miles are you?
2019 F150 4X4 1903 payload
2018 Adventurer 21RBS 7700 GVWR.
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Grit dog
Black Diamond, WA
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^ Nope, he’s just the consummate story teller, trying to somehow relate an old muscle car and assembly line job or whatever to someone asking if they should re-pack their bearings.
Although about the same relevance as the tire comment. Next will be analyzing the payload capacity of the tow rig, you know, because the OP didn’t specify what he was towing with….
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold
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TravelinDog
Nevada
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klutchdust wrote:"Used to be, likely still applies, not a good idea to mix different types/brands of grease. "
I would really like to see some proof or research/testing done by a reliable source to back up that statement. Having serviced hundreds of semi trailer units and not knowing what grease was used previously, it was a rarity, rarity that a bearing in our fleet of over 10k units ever had a bearing failure. A bearing was only serviced when the unit was brought into the shop for a brake change. That could be anywhere from 1 year or 5 years. Servicing wheel bearings every year is just nonsense. I call malarky on that one.
I agree 100%.
The bearings don't car what kind of grease is in there. The important thing is that there is grease and the bearing never run dry.
Mixing different greases has never been a problem in over 40+ years of cars, trucks and trailers.
Just say no to the payload police ">
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Gdetrailer
PA
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Joined: 01/05/2007
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TravelinDog wrote:klutchdust wrote:"Used to be, likely still applies, not a good idea to mix different types/brands of grease. "
I would really like to see some proof or research/testing done by a reliable source to back up that statement. Having serviced hundreds of semi trailer units and not knowing what grease was used previously, it was a rarity, rarity that a bearing in our fleet of over 10k units ever had a bearing failure. A bearing was only serviced when the unit was brought into the shop for a brake change. That could be anywhere from 1 year or 5 years. Servicing wheel bearings every year is just nonsense. I call malarky on that one.
I agree 100%.
The bearings don't car what kind of grease is in there. The important thing is that there is grease and the bearing never run dry.
Mixing different greases has never been a problem in over 40+ years of cars, trucks and trailers.
The bearings may not care, but one needs to consider that not all greases or grease brands use the same thickener and the thickener may not be compatible between the two greases.
My Dad always mentioned about being careful of what type of thickener was in the grease and not to mix greases which did not have the same thickener.
HERE is a good read on mixing greases and compatibility.
" The test results are shown in Figure 1. Every grease was incompatible with at least one other grease. The most incompatible were aluminum complex, calcium complex, clay and polyurea-thickened greases.
The most common effect was substantial softening, however lithium grease sometimes hardened. Interestingly, barium grease blends looked like grease on the bottom and oil on the top, which may indicate that the second grease thickener was liquefying upon mixing. It is important to note that even if thickeners are generally compatible, two greases may contain clashing base oil or additive formulations.
Also, not all thickeners of the same group are compatible with each other. Polyurea grease is an example of this as two polyurea grease formulations in specific cases may not be compatible with each other."
In a nutshell, mixing greases with incompatible thickeners can soften or liquify the grease, can breakdown the grease or harden the grease.
HERE is more info from same website above that may be of interest.
" Unlike the compatibility of oils, which is most often related to interactions of the additives in the products (and sometimes the nature of the base fluids themselves), the compatibility of greases is most often related to the thickener types of the products to be mixed (although base fluid compatibility is also important).
How to Determine Grease Compatibility and Why It's Important also provides an indepth look at grease compatibility.
Grease compatibility is often confusing to grease users, even though most grease manufacturers produce compatibility charts. This is because the charts from the various manufacturers often disagree with one another on certain thickener-type combinations. In bygone days, when simple soaps and clay were the primary thickener types, compatibility was relatively straightforward.
Lithium and calcium soaps were compatible with one another, and neither was particularly good when mixed with a clay-based grease. Today, with not only the aforementioned thickeners – but also complex soaps, polyurea, calcium sulfonate and even more exotic thickeners used in many greases – the issue of compatibility has become much more complicated. A typical grease compatibility chart is shown in Figure 1."
I would encourage you to review the material in the links as there is a lot of good to know stuff there.
Basically, I try to buy the same brand and type of grease, if for any reason I am not able to buy that grease I have been using I simply clean the bearings and surfaces any old grease that is present and repack with fresh grease from the new brand.
While you most likely will not encounter a problem mixing grease brands and types, it may not be ideal to do so. For the small amount of grease used for each wheel it is a small price to pay for knowing it was done right.
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valhalla360
No paticular place.
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If you trust the shop did it right, just head out.
I might stop at 10-20miles and feel the hub to see if it's hot and then again at 50 miles. If they are cool, you should be golden (this assumes you don't stop at the bottom of a big hill and the brakes are hot from braking).
I am in the habit of doing a walk around when stopping for a bathroom break looking for anything out of place and I usually reach in and touch the hub to check for heat.
Tammy & Mike
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2021 Gray Wolf
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