Longfield Longevity

[Bjordnolf]

I just read in another post that the longfields do not have longevity. I did a search and didnt come up with anything. Could someone explain this further because I was planning on ordering some of these?
thanks

 

[Bjordnolf]

Also while we are at it, how about poly rear axles and longfield front axles? I am building an expedition rig and definately want longevity, but also something that will hold up to the cummins 4bt.
thanks

 

[Cruiserdrew]

If this is an 80 series, send a PM to Norcal Sam. His 80 series longfield birfs were clicking like mad by 17k miles. Longfield himself confirmed they were not suited for an full time 4 wheel drive truck.

 

[Bjordnolf]

So is the longevity issue the same for all the treated stuff or just the birfields? My best option is OEM then?
thanks

 

[knorrena]

I called the longfield folks and was told that the intended application of the longs are offroad, they will not hold up to daily driving conditions.

Karl

 

[airlaird]

Wow... I think the majority of us on this list have an 80 as a daily driver. I am amazed a product can be made for the 80 for "strictly offroad" So, Now we know...and to think I almost bought the Longfields....whew.....that was close.
airlaird

 

[Brian894X4]

It always best to talk to Longfield personally, but the gist is that his treatment is designed to soften up the metal in certain parts so that they are more likely to give, rather than shatter upon some kind of impact or heavy load. I think I'm explaining that right.

Since most 80s are AWD, the front is turning all the time and this can premature wear compare to a stock birfield.

But like I said, call Bobby over at Longfield. He may have some better advise. Maybe some kind of part time T-case conversion might be in order for your application.

 

[IdahoDoug]

I'm not a Longfield candidate either, but in his defence are basics of metallurgy and he's likely made the correct choices there. In a shaft like this you can have high hardness for good wear, or high elasticity for better strength. I think he caters to hardcore offroad types who want the ultimate strength and are not using their trucks for DD duty.

DougM

 

[rgsiii]

I have 40,000 miles on some Longfields ahd have had no troubles up to this point.

Why did I just jinx myself?

 

[NW-sickboy]

you may want to do your homework on what kind of "longs" your putting in. i have 12k on mine no problems. thats over a 3 year period, you can see i dont drive much ...

 

[jfz80]

https://forum.ih8mud.com/showpost.php?p=2148649&postcount=12