metric brake fittings?

[tomrad]

I just saw that the hose fittings on the 2003 Liberty are metric, m10. I bought 3/8-24, the same as I always use on American cars. Are they the same? Help!

 

[JasonJ]

I just saw that the hose fittings on the 2003 Liberty are metric, m10. I bought 3/8-24, the same as I always use on American cars. Are they the same? Help!

Are you asking if metric 10mm is the same size as 3/8"? No, those are close, but not the same. 10mm is .393", 3/8" is .375. Plus, the 3/8" will be 24 threads per inch, a 10mm is going to be either 1mm, 1.25mm, or 1.5mm between threads.

Not only are they different dimensions, the way they are measured and presented are different as well.

 

[04Liberty]

Ummmm...every American car has been metric since at least the mid to late 90's.......

 

[tomrad]

My 1999 Ford F150 is SAE (3/8-24). I didn't know metric was so common for newer brake fittings. Oh well, now I know.:gr_grin:

 

[JasonJ]

My 1999 Ford F150 is SAE (3/8-24). I didn't know metric was so common for newer brake fittings. Oh well, now I know.:gr_grin:

My mid 90s Escorts, and my 94 Grand Marquis were metric... as were my dads 94 Cavalier.. can't remember the last time I worked on an "American" brand vehicle that wasn't, and wasn't from the 80s.

Yeah, if you know ahead of time, it's not a big deal.. finding out after you've bought parts ***** hard. Not irreparable, just annoying as hell.

 

[tomrad]

Yeah, my first clue was the metric nut hex. Had to buy metric flare wrenches. Then noticed the 3/8-24 nut threaded in way too loose for my liking.
Got to admit, the '99 F150 is the newest vehicle I've worked on, besides the Liberty. I had no idea they were no longer SAE.
Funny, the F150 had a mix, some SAE, some metric. There was a metric bubble flare joining the front and rear brake line sections. The rest was SAE.

 

[ltd02]

Yeah, my first clue was the metric nut hex. Had to buy metric flare wrenches. Then noticed the 3/8-24 nut threaded in way too loose for my liking.
Got to admit, the '99 F150 is the newest vehicle I've worked on, besides the Liberty. I had no idea they were no longer SAE.
Funny, the F150 had a mix, some SAE, some metric. There was a metric bubble flare joining the front and rear brake line sections. The rest was SAE.

Sounds like a Ford thing. My 98 Ranger has that mix too. PITA... :gr_grin:

 

[Leeann]

My 2005 Chevy is a mix of metric and SAE. Brake fittings are all SAE on that vehicle.

 

[ltd02]

My 2005 Chevy is a mix of metric and SAE. Brake fittings are all SAE on that vehicle.

Just get a set of Metrinch and you'll never have a problem. I've had a set for about 25 years and every piece is still working great. Maybe not for the professional but I'm far from a professional so worth the price to me.

 

[Leeann]

I have plenty of both SAE and Metric tools, so I don’t need a combo set.

You just have to know what thing is what. Not a big deal

 

[ltd02]

I have plenty of both SAE and Metric tools, so I don’t need a combo set.

You just have to know what thing is what. Not a big deal

I have plenty of both in my garage now too, but I also use them as a carry along in the vehicle. Takes up very little space. They also work great on worn bolts and nuts since they sort of grab the sides more so than the points. They are pretty pricey though for what they are.