The hooker mounts will need some work before you try to set them to the frame. There's excess material on the forward and aft plates that need to be ground down to the L-angle that sits on the top and sides of the frame. If you try and fit them as is, it will throw the angel of the mounts off. Also, if you're working on a 75 or older truck, you need to remove the old mount brackets from the truck completely and grind them smooth to the frame. Theres a small bracket that holds the rock guard in place that must be removed and ground down. The self tapping screws that are supplied with the kit are useless. You'd be better off drilling the holes in to the frame and tapping them out for a bolt. That's what i ended up doing.
So it goes like this:
Remove the old mounts and grind everything flat to the frame.
Grind the new mounts so the L-angel sits flush to the frame.
Set the motor in place and attach the mounts.
Once you're happy with the placement, mark the holes.
Pull the motor and trans out and drill and tap the holes.
Bolt the new mounts to the frame and make sure that everything sits flush and there's no gaps between the mounts and frame.
If there is a gap somewhere, slot the mount holes so it can fit correctly. The bolts are for getting the mount tight to the frame so you can get a solid weld. DO NOT try and run the engine with only using the bolts.
Once everything is bolted in, install the motor again and see if it installs smoothly.
If you can set the motor/trans in place smoothly, get a welder and weld them in to place.
I hope this helps others out because i spent a lot of time getting things just right.
_________________ Previous setup: 4.1 Buick V-6/TH 350
Current setup: 400 Small Block Chevy V-8/TH 350
9" ford rear end/short bed/blue
What do Water, Electricity and Humans have in common... They all travel the path of least resistance.
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