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I've add the following information to the list at the top of this thread. When I discovered the rubber boot was cracked and slinging out grease out I started searching for a replacement axle. After talking to Jim Finn I learned that I would need an axle that only fits '88 models. The axles and wheel bearings (hub) are different on '88 models from later models. They will not interchange. The '88 axles measure about 1-1/8 inch in diameter on the splined area that goes through the bearing. The later axles are about 1-1/2 inch in diameter. Also, the '88 axle treaded area is 1/2 inch longer than later model axles. I had to cut that 1/2 inch off to clear the center cap of my Cadillac STS chrome wheels. I had done that before when I orginally installed the STS wheels on my Reatta. Below is a photo and text from an email Jim sent me explaining the differences. Jim was very helpful in providing information and getting me the part I needed. I highly recommend Jim for used Reatta parts. ---------------------------- Ronnie, Here is a picture of the differences between the '88 axles and the later ones. The '88 axles measure about 1 1/8 inch in diameter on the splined area that goes through the bearing. The later axles are about 1 1/2 inch. ( Pay no attention to the fact that one of the axles does not have the teeth on it for the ABS. That axle came from a Riviera that did not have ABS. ) Jim

I don't know what other parts could be changed but I do know that the front strut for an '88 is different. Don't know if the strut would accept a later model knuckle or if the knuckle would accept a later model bearing. Also don't know if the splines on the transmission end of the axle are different from later models. All good questions for Jim Finn.

Finished the axle replacement today. I spent at least an hour under the car cleaning off grease slung out of the cracked boot on the axle. It's terrible grease that just want to smear instead of wiping off easily. Luckily what slings out isn't in a place that can be seen from under the hood or inside the fenderwell.

Ronnie and 2 seater appreciate all your help. will test accumulator tomorrow. I do not have FSM. If this helps you guys help me, system is still charged as of now from yesterday. Excuse any confusion in terminology, we have been discussing whenever pump engaged pedal sinks to floor.