Yes, a new hole needed to be drilled through the frame for the rear bolt on the GMT900 series two hook. The new tow hook was also narrower so a spacer nut was added along the front bolt inside the frame.Really love the work you have done with your rig. I was wondering if you had to drill out the frame for the rear bolt on the gmt900 tow hooks? I just found out the previous owner had hit something with the driver side tow hook on my hoe and it managed to pull the bolt that goes through the bottom of the frame through its mounting hole and is now inside the frame still attached to the tow hook. Hoping I can switch to the gmt900 hooks since the rear bolt mounts from the side not the bottom.
Very nice job. A lot of that looks very familiar. Something else you will want to address: the 4L60E trans. Help it live longer - put in a 30,000# trans-cooler - I routed mine outside of the radiator, but I know some on here kept the internal routing.
Good point - the vette servo does help - but what will help most is getting that trans completely gutted and replaced with aftermarket components. GM has a design flaw in the 4L60E - steel shaft, aluminum drum. They heat up at different rates and a gap develops that allows fluid to pass and blows the 3-4 clutch pack. If you haven't dealt with it yet - operative word - here's what to watch out for - flaring. You'll be driving along and start noticing your engine RPM going up. If you don't notice - it's going to fry. You SHOULD be able to limp it home in second gear - most of the time. However, if you watch out for it, once it starts to rev, back out of the throttle and then slowly roll back into it. May take a few times, but most of the time that works to get you where you need to go.That and a corvette servo.
Good point - the vette servo does help - but what will help most is getting that trans completely gutted and replaced with aftermarket components. GM has a design flaw in the 4L60E - steel shaft, aluminum drum. They heat up at different rates and a gap develops that allows fluid to pass and blows the 3-4 clutch pack. If you haven't dealt with it yet - operative word - here's what to watch out for - flaring. You'll be driving along and start noticing your engine RPM going up. If you don't notice - it's going to fry. You SHOULD be able to limp it home in second gear - most of the time. However, if you watch out for it, once it starts to rev, back out of the throttle and then slowly roll back into it. May take a few times, but most of the time that works to get you where you need to go.
I've had 3 of them fail on me. The first resulted in a 105 mile drive in second gear. The second resulted in a 95 mile drive in second gear. The third resulted in a 250 mile drive while pulling a pop-up trailer - in second gear. My current trans is a 4L60E case - everything else is aftermarket and it does much better.
Good point - the vette servo does help - but what will help most is getting that trans completely gutted and replaced with aftermarket components. GM has a design flaw in the 4L60E - steel shaft, aluminum drum. They heat up at different rates and a gap develops that allows fluid to pass and blows the 3-4 clutch pack. If you haven't dealt with it yet - operative word - here's what to watch out for - flaring. You'll be driving along and start noticing your engine RPM going up. If you don't notice - it's going to fry. You SHOULD be able to limp it home in second gear - most of the time. However, if you watch out for it, once it starts to rev, back out of the throttle and then slowly roll back into it. May take a few times, but most of the time that works to get you where you need to go.