Can anyone verify if the rear hubs would be the same between disc and drum knuckles? (edit - sorry if my terminology is mixed up) Here's the part I'm talking about. One of the rear disc knuckles I have had a bad bearing that spun and wore out the hub pretty bad. I was planning to replace the bearings in both knuckles anyway, so I was thinking to just swap with the hub in my drum knuckle, or go to the junkyard and pick something up. Here's the good hub. and the bad one. Anyway, I'm slowly making progress on my rear disc conversion. It was a real pain getting the axles out of the hubs without the knuckles mounted on the car. But, I've finally got it all apart and almost ready to start ordering new parts/bearings/seals and putting things together. I'll probably have just as much fun getting the old knuckles out of my car, that's something to look forward to. :eek3:
they should be the same, IIRC, you need teh hubs, discs, brackets, calipers and the lines and thats about it for this swap
Yep, those are the rear disc hubs in the last pic, that's the parking brake you're seeing there. So, I just need to get a new spindle for one of them. Do you know if the parking brake cable the same between drum and disc? Otherwise, I just need to order new bearings/seals for the hubs, new rotors/pads/ss lines, and new boots/seals for the calipers. I should have all the basic parts.
Do you have a caliper you can use to measure your hub ID? They look exactly the same as my rears when i did my bearings except yours are ball bearings and mine are roller bearings. BTW if you can convert to rollers i would do it. Ill measure my old bearing races' OD and let you know what i come up with.
I don't have calipers, but I'll try to get a good measurement on it. And yeah, I was planning to upgrade to the legacy roller bears, I did that when I replaced a bad bearing on my last impreza and it worked great. These are the bearings I used before and was going to get this time too. Legacy 4wd rear wheel bearing: - subaru part #: 28016AA030 - napa part #: GRW175 (both are NTN 4T-CR1-08A05 bearings)
I seem to remember that the ball bearing part has been replaced in the dealer catalogue by the roller bearing type. If you get a ball bearing one now, it's old stock. I don't know if Napa made the switch, too, but the dealers cetainly did. When we did the rears in mine last year, they came as roller bearing types without having to ask for them especially, or having to use the Legacy part number. Stuart.
So i have a Napa bearing sitting around but i fear its a front, so i dont know if this helps at all. Race OD - 72.00mm Race Height - 35.00mm Bearing ID - 41.75mm Ill keep looking i know i have an old rear bearing around somewhere.
I was always under the impression that the hubs were on the list of parts that needed to be swapped.... BUT, rockauto.com shows the same part number for rear wheel bearings. and a quick search on subaruparts.com shows rear hub part application as being '93-'01 AWD. doesn't differentiate between models or brake setups. I don't know if this link will work.....but.... http://www.trademotion.com/partloca...0720&callout=1&catalogid=2&displayCatalogid=0
Yep, that worked. Thanks for the link. I was originally getting confused with the terminology. The hub bolts to the wheel, and the spindle (or knuckle) bolts to the strut, I had it backwards. Anyway, I always thought a different spindle/knuckle was required, but maybe I can bolt the backing plate from the RS knuckle onto mine and be able to mount the caliper bracket. That would make life a lot easier. Hmm... I'm gonna have to look into this tonight.
I knew you could use the drum knuckle with the disc backing plate. but IIRC the plate is pretty tightly pressed on there. it's a PITA to get off. I guess I just thought the hub had to be replaced since it does on an EA subaru rear disc swap....
I found the dimensions of the bearing for the rear hub. Wheel Bearing I.D. : 1.496" Wheel Bearing O.D. : 2.559" Wheel Bearing Width : 2.053" I got the outer race of the bearing out of the knuckle last night. There is some slight evidence that the outer race spun in the knuckle. I'm not sure if it's still ok or not, the race came out very easily, especially compared to the other knuckle (still haven't gotten that one out). So, I'll probably find a different knuckle/hub to swap in. I could just use the ones on my car, but I'd really rather have everything ready to go when I do the swap so I don't have to have my car torn apart for too long.
Ok, I got some drum hubs/knuckles (thanks w_o_t_boy). I pulled the bearings out tonight and they look to be in good condition. So the hubs and knuckles are the same between disc and drum. There's some cosmetic differences in the hubs (one large hole drilled in between two of the studs), but the dimensions are all the same, no reason it won't work. The knuckles are identical, even between ABS and non-ABS, the sensor mounts to the backing plate. The ebrake cable might be different though. Between drum and disc they both come in to the backing plate at the same point/angle, but the way they connect to the backing plate looks different, so just different style cables maybe? I dunnno yet... So I'm just waiting for my new bearings and then I can start putting things together. The next challenge will be getting the old knuckles out of my car.
oh yea, cables. seems to me I remember seeing that they can work, but getting the different ones is preferred.
