Vehicle & Technical > Discovery

Just got some Jate Rings and a quick question..

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boss:

--- Quote from: "Tony F" ---The strength (hardness) of the bolts is more important than the size, check to see if they have 8.8 on the bolts heads, if so they will be fine.

Any larger and they wouldn't fit through the chassis.
--- End quote ---


Hardness has nothing to do with strength.
Hardness stops things deforming under pressure where as tensile (it might be ductile, I can’t remember) strength measures how well it copes under stress. if you are worried about them not being strong enough find some of the hollow bolts......it sounds weird I know but with a hollow bolt the weight/stress is distributed around the inside if the bolt as well as the outside making it slightly stronger, but the bolts have to be made well so be careful if you do get some

Bush Tucker Man:
I had Jack-Mates on my Discovery as you know Andy, but the 110 wears JATEs on the front.

If the vehicle in question still wears a 'spoiler' (they got the name right), Jack-Mates are a far better bet than JATEs, if only due to accessability for attachment.

 





--- Quote from: "Range Rover Blues" ---You will find if you have them tight that they spin round to the chassis trapping your towrope in place, which is why many people have them loose.

--- End quote ---

Which is what that lump-hammer in the back comes in handy for..... whacking them back into position to release the shackle :lol:

Range Rover Blues:
Jack mates are still on the remains of RRR.

I'd guess the JATEs would go on over a towbar, depending on which towbar (not the southdown for sure) but when they spin round they will catch on one side and that may ruin the JATE so be careful.

KingWolf:
Does anyone know where I can gat a pair of those jack mates from??? I think a pair on the front would be just what the Disco requires.

many thanks in advance

Mark.

Tony F:

--- Quote from: "boss" ---
--- Quote from: "Tony F" ---The strength (hardness) of the bolts is more important than the size, check to see if they have 8.8 on the bolts heads, if so they will be fine.

Any larger and they wouldn't fit through the chassis.
--- End quote ---


Hardness has nothing to do with strength.
Hardness stops things deforming under pressure where as tensile (it might be ductile, I can’t remember) strength measures how well it copes under stress. if you are worried about them not being strong enough find some of the hollow bolts......it sounds weird I know but with a hollow bolt the weight/stress is distributed around the inside if the bolt as well as the outside making it slightly stronger, but the bolts have to be made well so be careful if you do get some
--- End quote ---


OK so I'm no expert but I know that using mild steel bolts instead of high tensile (i.e. 8.8's) is a no no  :D

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