I double-checked over the weekend and yeah, I was off. More careful & repeated measurements showed they match up pretty well with the repair bearing sizes. Should be fine once the engine is back together and everything gets seated/broken in. That package can't come soon enough! Also, any recommendations for break-in oils are welcome. Total Seal says not to use synthetics for seating their rings, so conventional only. From some, I've heard any old cheap 5W40/10W40 with some zinc additive since the oil will be changed pretty soon after the first start.
So what else is on the list of things to do, besides the engine?
- Remove the driveshaft and replace both flex disks
- Test both rear diffs, if the current one is bad then...
- Remove the rear diff & axles, replace with the '86 diff and axles I picked up a while back
- Wire the new diff's ABS sensor to the car (MB, of course, used a different sensor in the '87 diffs). Contemplating finding a nice weatherproof 2-pin connector and using that so I can go back and forth.
- Remove the rear subframe and replace the subframe bushings
- Disassemble the rear multilink suspension and replace the arm bushings (5 arms per side)
- Install new driveshaft support & bearing once the driveline goes back into the car
- Replace the front strut mounts (included in the ECS order), and possibly refresh the front struts.
I'm happy the only thing in that list I'd need to buy are the 2-pin connector and struts And non-engine things I still need to buy and install:
- New brake lines for the wheel wells
- New brake rotors
- New brake calipers (switching to a 400E or 500E setup for 4-pistons up front)
- Pads, fluid, etc.
There's a guy on the rev selling a pair of stripped Brembo aluminum 500E calipers with new seals for $200 a pop, but they need new pins and anti-rattle springs (~$80 per caliper) and need to be painted or powdercoated because they're bare aluminum.
The alternative for a 500E setup is using the later iron Ate calipers, which can be found on ebay remann'd for about $200 each, no pins or painting required. Downside is they're heavier, so that's a little more weight moving up and down with the front wheels. The aluminum Brembo calipers are also what went on the Evo II, and are harder to find because only the early 500Es came with them before MB switched to the quieter iron calipers.
Or I find a 400E/420E/500E at a pick-n-pull, grab all 4 calipers, and rebuild the whole set myself. That will probably be a lot cheaper! Pair them with some good track pads and rotors and this thing might just out-brake the GTI (Hawk HP+ for the track & slotted rotors).