Replacing Rear Water Bypass Gaskets

OK so I replaced timing belt and water pump on my 2000AC last year. Past month or so noted very slow loss of coolant and wet spot under right rear of engine. Upon further inspection appears to be coming from rear water bypass gasket on passenger side. Question - do I have to take off intake change bypass gaskets or can it be done with intake on? Thanks.

 

You have to remove the intake to get to it.

below is my thread on a Similar repair. one mistake I did was removing/disconnecting the fuel rails. It’s not needed. Have them come out with the intake.

https://www.tundras.com/threads/coolant-leak-bypass-pipe-o-ring.81275/#post-2628989

 

I think I misspoke - it's the gaskets in the aluminum coolant crossover at the rear under the intake. Looks like I might be able to access the bolts if I slide the wiring harness back toward the firewall or does the intake still need to come off?

I removed the intake about 10 years ago when I replaced the starter contacts and I left the fuel rails on and didn't separate the intake halves. Seemed to work OK but I think that starter job took me like 4 hrs so not looking for to that.

 

I recently had this done on my 02 Sequoia by my mechanic and I could tell they did not take off the intake to do the job. I was under the impression that intake needed to be removed but I guess it does not. I am sure it is easier to access by removing intake though.