Seca 550 to seca 750 brake swap?

So I'm building a seca 750 and my front brakes are siezed. I found someone parting out a seca 550 who will sell me his brake calipers with good pads and shoes for $50, plus the rear drum with pads and shoes for $25 plus shipping. Will this swap be as easy as replacing the calipers? Are the disks the same size? What about the rear drum? Thanks!

 

I don't believe the 550 front caliper will work on the 750. Different mountings. As for the rear, I can't say for sure, but if they're both chain drive I don't see why not.
If I'm wrong, I'm sure someone will come along and correct me. (at least I hope they will)

 

My Seca 750 is definitely not chain drive. Verrry beeg shaft!

 

The right brake caliper on the 550 Seca and 750 Seca are the same. The 550 does not have a left caliper like the 750. The 550 brake disc is also not the same as the 750. The rear brakes from a 550 Seca will not work on the 750. The 750 is shaft drive, while the 550 is chain drive. You would be better off just rebuilding your 750 caliper and know they will work properly. You can get all the parts you need from Chacal.

 

Thanks so much! I'll end up getting the parts I need once I'm done building the engine!