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  #1  
Old February 2nd, 2007, 17:18
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HeavyMetal HeavyMetal is offline
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Hub fitment based on years

Just a simple question i guess. replacing my hubs on my dana 30, i have access to a low mileage hub off an 02 TJ for 10 bucks. will this fit without issue or change on my 97 XJ?

thanks guys
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  #2  
Old February 2nd, 2007, 17:31
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Re: Hub fitment based on years

yes it will fit.

the break was around 91
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  #3  
Old February 2nd, 2007, 17:46
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Re: Hub fitment based on years

i just saw this on gojeep's site, and now im confused. i really hope the one i have fits, otherwise my jeeps apart outside and i dont have a replacement hub or the money for one right now.

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  #4  
Old February 2nd, 2007, 17:51
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Re: Hub fitment based on years

not sure if the depth of that shoulder really matters, as it does not pertain to the dimensional mounting...........
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  #5  
Old February 3rd, 2007, 01:41
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Wayne Sihler Wayne Sihler is offline
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Re: Hub fitment based on years

The hubs will bolt to the axle just fine .HOWEVER the brake rotors you have will NOT.The rotors must match the year of the hub.
Wayne
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  #6  
Old February 3rd, 2007, 10:30
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Re: Hub fitment based on years

If you change your rotors to the style that matches your donor unit-hubs you can swap either way across the years, 1990 thru 2001.

Three different hub/bearing units were used over the years on XJ's. The hub/bearing units are the same part number for both sides of the vehicle. The model years for hub/bearing assemblies were:

1) 1984 through 1989 (early style rotors)

2) 1990 through mid-1999 (composite rotors)

3) late-1999 through 2001 (cast rotors).

** You need to match brake rotors to the unit bearing/hubs on your XJ. **

Lay the rotor on your bench and measure from the bench to the top of the rotor.

Composite rotors will have an overall height of 3 3/16". Composite rotors will have a thin sheet metal like appearance at the lug nut holes where the studs come through and measure about 1/8 "(.125) thick in this area. Composite rotors have a rounded off corner at the wheel mounting surface and look like two pieces joined together.

Cast rotors will have an overall height of 3 1/16". Cast rotors are thicker at the lug nut holes and measure between 1/4" (.250) to 5/16 (.320) in this area. Cast rotors have a square corner at the wheel mounting surface and look like they are one solid piece of metal.

Parts store replacement rotors may have a different appearance.

On late 1999 - 2001 unit bearing/hubs the ring around the 36MM shaft retaining nut is almost 3/4 inch tall and the hub has longer lug nut studs than older hubs.

On early 1990 - 1999 unit bearing/hubs the ring around 36MM shaft retaining nut is about 1/2 inch tall.

Two steering knuckle designs were used: 1984 to 1989 and 1990 to 2001. Left and right side knuckles have different part numbers.

Two types of brake caliper styles were used: 1984 to 1989 and 1990 to 2001. Left and right sides are different part numbers.


1999.5 to 2001 unit bearing/hub on the left, 1990 to 1999.5 unit bearing/hub on the right
.


COMPOSITE ROTOR below -
.

.
CAST ROTOR below -
.
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  #7  
Old March 6th, 2017, 14:17
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Re: Hub fitment based on years

So i just pulled a d30 from a 86 xj, i seen on the local cl 2 sets of g2 ball joints for 80 unopened so i had to grab em. Now on to my hub assembly, can i get a later year hub like a early 90's hub set up for that axle and just make sure to get rotors to match that year? Or will i have to get the 86 hubs?
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  #8  
Old March 6th, 2017, 14:24
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Re: Hub fitment based on years

mid 99 there was a break, if you have early 99 the rotors from a late 99 will rub and bind up, ask me how I know lol
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  #9  
Old March 6th, 2017, 14:32
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Re: Hub fitment based on years

Lol so ill be fine with a lets say 93 hub and rotor setup on a 86 axle?
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  #10  
Old March 6th, 2017, 14:35
N8N_99xj N8N_99xj is offline
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Re: Hub fitment based on years

There as a break mid-99 as well.
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  #11  
Old March 6th, 2017, 15:13
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Re: Hub fitment based on years

Seen a hub assembly for a 91 on cl for 30 i understand the break for the 99s but again this is a 91 hub will it fit on my 86 axle?
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  #12  
Old March 6th, 2017, 15:34
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Re: Hub fitment based on years

You can get new timekin hubs for $68 a side, id cross reference parts numbers
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  #13  
Old March 6th, 2017, 16:10
N8N_99xj N8N_99xj is offline
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Re: Hub fitment based on years

Quote:
Originally Posted by 93bluebeast View Post
Seen a hub assembly for a 91 on cl for 30 i understand the break for the 99s but again this is a 91 hub will it fit on my 86 axle?
Short answer, doesn't look so.
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  #14  
Old March 6th, 2017, 17:06
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Re: Hub fitment based on years

1984 thru 1989 D30 use their own specific outer knuckles, calipers, rotors, and unit hubs.

You cannot cross the 1989/1990 model year engineering change with individual parts from 1990+ D30's.

You can do a complete swap of later year knuckles/calipers/rotors/hubs onto an 1984 - 89 D30.
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  #15  
Old March 6th, 2017, 17:19
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Re: Hub fitment based on years

Seen a hub assembly for a 91 on cl for 30 i understand the break for the 99s but again this is a 91 hub will it fit on my 86 axle?
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