Wrench Sizes

C

Captain Phoenix

TJ Enthusiast
Supporting Member
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Feb 2, 2020
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363
Location
Wilmington, NC
How many times would a do it yourselfer wind up needing an open ended wrench over 1" or 22mm working on an LJ?

Are there enough things needing sizes over those that one should buy a set that goes bigger or is there only one or two larger sizes of wrench needed?
 
Not many I can think of. Adjustable control arms, pitman arm nut. I use a pipe wrench because I have one.
 
From my list...

21mm 13/16"
Control arm bolts (Savvy)
Front track bar frame side (Currie)

22mm 7/8"
Control arm nuts (Savvy)

24mm 15/16"
Front track bar frame side bolt (Currie)

34mm
Fan clutch (wrench handle to the left)

36mm
front axle shaft/unit bearing nut

1-1/2"
Upper control arm jam nuts (Savvy)

1-7/8"
Lower control arm jam nut (Savvy)
 
jjvw said:
From my list...

21mm 13/16"
Control arm bolts (Savvy)
Front track bar frame side (Currie)

22mm 7/8"
Control arm nuts (Savvy)

24mm 15/16"
Front track bar frame side bolt (Currie)

34mm
Fan clutch (wrench handle to the left)

36mm
front axle shaft/unit bearing nut

1-1/2"
Upper control arm jam nuts (Savvy)

1-7/8"
Lower control arm jam nut (Savvy)
Click to expand...

I'd like to watch you take an axle nut off with a wrench. The rest is good stuff though.
 
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None taken. That is just a list of nut and bolt sizes.

For the control arm jam nuts I use a big crow's foot and a breaker bar. They are a little cheaper and a lot smaller than the big wrenches, and better able to grab the nut in the right position.
 
If all you have is a Jeep to work on then you can go by that list. I find I'm needing to go up to1 1/4 " wrench by 1/16ths. Then a cheaper set of jumbo (harbor freight, farm store) wrenches by 1/8ths to 2".
Get a decent set of 1/2 drive impact deep well socks in SAE and metric that go to 1 1/16" and you can cover 95% of the bigger nuts and bolts.
 
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I keep a 36mm socket and my extendable 1/2” ratchet.

I carry the ~$100 on sale harbor freight tool kit for most everything else.

also have a nice aluminum adjustable wrench (from Crescent) that goes up to 1.25” if needed.
 
Captain Phoenix said:
Do you use a wrench or ratchet for that one?
Click to expand...
I believe he is talking about the large nut on the fan clutch that goes on the water pump.

C0D41A6A-9DB4-4023-B96A-C3FA651BF95E.jpeg

Correct me if I’m wrong but I believe it’s 36mm. I don’t have my kit to look at right now.

If you want to invest just get one of these kits

https://www.amazon.com/dp/B000NICENU/?tag=wranglerorg-20

Savvy short arms
Uppers 1-1/8
Lowers 1-1/2

x2 crows foot and breaker bar
 
Last edited:
jjvw said:
Big adjustable wrench and big hammer work just as well.
Click to expand...

True, most of the time. That is why I stated if you want to invest. I use the tool that goes on an air hammer. Another investment. Some people work on more then there jeeps.
 
I tend to prefer a pipe wrench over a crescent wrench when a big nut that I lack a wrench for is handy.
As to OP, I tend to try for a socket first. Less likely to slip or round off a nut. I prefer to use impact sockets for anything over 3/4". Always try and use a 6 point socket. It puts a lot of the force onto the sides of the nut instead of the corners. Of course there are just enough 12 point nuts to need a set of them too.
 
Basically, I'm trying to decide which set I should buy. (The roll up organizers are $15 each if I buy the set without them. The cost of the 4 metric wrenches bought separate from the set would be more than $30.)

Screenshot_20200601-202550.png
 
Your Jeep will be different in several areas, but this will give you an idea of what sizes you will encounter. Make a list and keep track of what wrenches and sockets you use.

8mm
Front drive shaft bolts

8mm 5/16" Hex
Transfer case skid (modified Savvy)
Bump stop upper bolt (Currie)

10mm
Tail lights from the body.
Cruise Control servo from bracket.
Servo bracket from fender.
Ground screws under dash.
Ground screws under hood.
PDC from fender
Console hold down to floor plate.
Console to tub
Radio into center dash screws
Some AC condenser bolts

E10 external torx
Transfer case to transmission
Radiator mount

11mm
Fan Shroud
Front drive shaft bolts transfer case

12mm

E12 external torx
Transmission bell housing

13mm 1/2"
Unit bearing bolts (12 point socket)
Diff cover bolts
Coil rail bolts
Thermostat housing bolts
Water pump bolts

14mm
Tie rod adjustor nut (Currie)
Tie rod adjustor bolt (Currie)
Rear truss diff cover bolt

15mm
Rear truss diff cover nut
Front Upper shock nut
Front track bar axle side (Currie)

16mm 5/8"
Oil drain plug
Spark Plugs
Antirock link bolt
Body mount grill
Body mounts rear shock mount
Body mount rear corners

17mm

18mm
Exhaust ball flanges
Body mount sides

19mm 3/4"
Drag link adjustor nut (Currie)
Drag link adjustor bolt (Currie)
Bump stop lower nut (Currie)
Bump stop lower bolt (Currie)
Lug nuts
Rear limit strap nuts
Rear limit strap bolts
Rear shock nuts upper and lower (Fox)
Rear shock bolts upper and lower (Fox)
Antirock link nuts

20mm

21mm 13/16"
Control arm bolts (Savvy)
Front track bar frame side nut (Currie)

22mm 7/8"
Control arm nuts (Savvy)

24mm 15/16"
Front track bar frame side nut (Currie)

34mm
Fan clutch (wrench handle to the left)

36mm
front axle shaft/unit bearing nut

1-1/2"
Upper control arm jam nuts (Savvy)

1-7/8"
Lower control arm jam nut (Savvy)
 
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