Leading on from here Is ABS worth swapping in? I am going ahead installing ABS on my 1993 mr2 (using JDM years, USDM are + 1 year I believe). I have parts left over from my crashed 1991 mr2 that did have ABS. I have a 2005 mr-s combined ABS pump/ECU unit coming over from Japan which I am praying comes with the pigtail loom in the picture. Engine / fuel tank currently out as I am swapping them over from my old car (were freshly rebuilt).
I took the central brake line from the 1991 car when I dismantled it. The 1993 has a single brake line of course and a clutch line but also an empty row in each bracket that screams chuck a 2nd brake line in me... ok. The identical line from the 1991 fits almost perfectly. It needs a touch massaging over a couple of spots. I also took out the galvanized fitting on the front "firewall" that both the brake line and clutch line screw into cut the bracket down to size and bolted it up.
My main problem is working out the knuckles. The 1991 knuckles have the smaller brake shields and I am the sort of idiot who has to have them perfectly intact and matching. My idea is:
Rears- there appears to only be two part numbers 42304-17010 and 42304-17020 for all mr2's 1989-99 which I assume is just ABS and non-ABS knuckles. So I think it makes sense to swap the 1991 ABS knuckles over to the 1993 but have them pulled apart and swap the 1993 dust shields over and might as well replace the wheel bearing for fun. Anything else worth replacing on them- I see there is a non-reuseable snap ring and the dust shield might be a bit worse for wear? I assume you can't change the brake dust shields without dismantling the hubs?
Fronts- there are at least 7 still available part numbers (I am guessing apart from the years, also ABS and power / non-power steering options). Apparently the steering geometry changed from 89-91 to 92-93 to 94-95 and 96+ and also some overlapping parts. My idea is to buy new 93 ABS knuckles 43211-17100 right, 43212-17100 left (I have no idea if 96 would be better), new wheel bearings also and swap all the other parts from the 1993 non ABS knuckles/hub over. Obviously not the cheapest option but I don't mind buying new vs hunting around dozens of scrap yards for relatively rare parts.
Does this make sense or am I missing something major?
I took the central brake line from the 1991 car when I dismantled it. The 1993 has a single brake line of course and a clutch line but also an empty row in each bracket that screams chuck a 2nd brake line in me... ok. The identical line from the 1991 fits almost perfectly. It needs a touch massaging over a couple of spots. I also took out the galvanized fitting on the front "firewall" that both the brake line and clutch line screw into cut the bracket down to size and bolted it up.









My main problem is working out the knuckles. The 1991 knuckles have the smaller brake shields and I am the sort of idiot who has to have them perfectly intact and matching. My idea is:
Rears- there appears to only be two part numbers 42304-17010 and 42304-17020 for all mr2's 1989-99 which I assume is just ABS and non-ABS knuckles. So I think it makes sense to swap the 1991 ABS knuckles over to the 1993 but have them pulled apart and swap the 1993 dust shields over and might as well replace the wheel bearing for fun. Anything else worth replacing on them- I see there is a non-reuseable snap ring and the dust shield might be a bit worse for wear? I assume you can't change the brake dust shields without dismantling the hubs?
Fronts- there are at least 7 still available part numbers (I am guessing apart from the years, also ABS and power / non-power steering options). Apparently the steering geometry changed from 89-91 to 92-93 to 94-95 and 96+ and also some overlapping parts. My idea is to buy new 93 ABS knuckles 43211-17100 right, 43212-17100 left (I have no idea if 96 would be better), new wheel bearings also and swap all the other parts from the 1993 non ABS knuckles/hub over. Obviously not the cheapest option but I don't mind buying new vs hunting around dozens of scrap yards for relatively rare parts.
Does this make sense or am I missing something major?