is there a preference on spool k member vs earlier. I prefer the design of 73-76 but what about the spool design motor mounts vs earlier motor mounts. What holds up better?
Spools motor mounts hold up better. But if you buy special biscuit type with interlock that should be just as good.
Spools have tighter clearance for running milodon race oil pans
Spools are tougher to shim motor height up for header clearance
Spools have the sway bar that is shorter for high backspace front tires if you are running 17”-18” with over 4.5” backspace allowing 245-275 wide front tires (bottom front fender lip mod also needed)
Spool have sway bar that goes through kmember that has better ground clearance than typical after-market biscuit kmember sway bar kits.
The pluses depend on what you are planing to do with car. Same with minuses.
I filled the voids in my spool motor mounts with a household silicone caulking gun. I’ve had the same mounts for 26 years.
