62 knuckles - Pirate4x4.Com : 4x4 and Off-Road Forum

hoop5 · 10-06-2004, 02:50 PM

I am currently tring to do the disk brake conv. from a '89 FJ62 to my '70 FJ40.
Do you have to grind off the lower part of the knuckle like the mini truck knuckles? I did a search and all I could find was mini truck knuckle swaps. I was told by several people that the 62 knucles would work, but I am having some issues.
Thnaks

cruiserbrett · 10-06-2004, 02:58 PM

Grind off the lower part of the knuckle?

No, you should just have to clearance the inner bottom of the ball on the end of the actual axlehousing. No grinding on the knuckle or any of the FJ62 parts. Only on the old FJ40 housing.

helocat · 10-06-2004, 03:11 PM

Yup the 62 disks install the same as the mini's, same grinding on the 78' on down axel housings. I have a set of 1990 62's on my 79'. Good stuff.

Mark

dieselcruiserhead · 10-06-2004, 03:15 PM

Here is mine -
Note you grind on the inside of the knuckle. FJ60/2 and mini truck birfields are the same size if not the same exact units AFAIK...

helocat · 10-06-2004, 03:23 PM

Oh ya.

As you grind remember to NOT make it so a 79+ birf just barley clears. Give your self an extra 1/6” to 1/8” of room. If that birf ever splits the bell and does not fully shatter you will be cursing that thing on the trail trying to get it out! A split bell brake makes the bell larger and normally just blinders the inner star and cage beyond recognition.
Larger bell due to split + tight fit grind = *%&$^#* on the trail.

Mark

hoop5 · 10-06-2004, 03:33 PM

Thanks guys for giving me a quick reply.
Hopefully we can get this on tonight and see how see works.

10-06-2004, 02:50 PM	#1 (permalink)
hoop5 Wheeler Join Date: Jun 2004 Member # 31967 Location: NW Arkansas Posts: 386	62 knuckles I am currently tring to do the disk brake conv. from a '89 FJ62 to my '70 FJ40. Do you have to grind off the lower part of the knuckle like the mini truck knuckles? I did a search and all I could find was mini truck knuckle swaps. I was told by several people that the 62 knucles would work, but I am having some issues. Thnaks __________________ Go Fast buggy built by Baertrax coming soon!!! http://www.facebook.com/hoop5?ref=tn_tnmn

10-06-2004, 02:58 PM	#2 (permalink)
cruiserbrett Registered User Join Date: Sep 2001 Member # 6863 Location: San Diego Posts: 2,797	Grind off the lower part of the knuckle? No, you should just have to clearance the inner bottom of the ball on the end of the actual axlehousing. No grinding on the knuckle or any of the FJ62 parts. Only on the old FJ40 housing. __________________ I have enough projects for the next decade. Need two?

10-06-2004, 03:11 PM	#3 (permalink)
helocat Metal-tech'in Join Date: Mar 2002 Member # 10420 Location: Newberg (Portland) OR Posts: 1,554	Yup the 62 disks install the same as the mini's, same grinding on the 78' on down axel housings. I have a set of 1990 62's on my 79'. Good stuff. Mark __________________ Metal Tech Made in the USA! ALL Active duty US Military get 10% off Metal-tech brand – thank you for your service!

10-06-2004, 03:15 PM	#4 (permalink)
dieselcruiserhead Registered User Join Date: Jul 2002 Member # 12758 Location: Park City, UT Posts: 4,651	Here is mine - Note you grind on the inside of the knuckle. FJ60/2 and mini truck birfields are the same size if not the same exact units AFAIK... Last edited by dieselcruiserhead; 10-06-2004 at 03:25 PM.

10-06-2004, 03:23 PM	#5 (permalink)
helocat Metal-tech'in Join Date: Mar 2002 Member # 10420 Location: Newberg (Portland) OR Posts: 1,554	Oh ya. As you grind remember to NOT make it so a 79+ birf just barley clears. Give your self an extra 1/6” to 1/8” of room. If that birf ever splits the bell and does not fully shatter you will be cursing that thing on the trail trying to get it out! A split bell brake makes the bell larger and normally just blinders the inner star and cage beyond recognition. Larger bell due to split + tight fit grind = %&$^# on the trail. Mark __________________ Metal Tech Made in the USA! ALL Active duty US Military get 10% off Metal-tech brand – thank you for your service!

10-06-2004, 03:33 PM	#6 (permalink)
hoop5 Wheeler Join Date: Jun 2004 Member # 31967 Location: NW Arkansas Posts: 386	Thanks guys for giving me a quick reply. Hopefully we can get this on tonight and see how see works. __________________ Go Fast buggy built by Baertrax coming soon!!! http://www.facebook.com/hoop5?ref=tn_tnmn

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