I believe there are solenoids that control shifting of that trans via the ecu. Check the Lexus Service manual. You can get an electronic copy for like $20. A site in UK sells them.
I used a fan bracket for an early LS400 90-94 pn T-150. It was on ebay and was sourced by NPW in AU. The pulley is also available. I replaced the entire radiator, catch tank and fan assembly. It wasn't cheap - I used a 66836 Derale dual fan w controller. I understand you can use a GM truck dual...
I have the same issue with a 97 SC 400. If you take a meter and measure resistance on the six pin you will find that there is 22 ohms resistance from the center pin to the pin on either side of it and there are two rows of pins so upper row & lower row and they all come out 22 ohms. I'm going to...
Well, your budget puts you out of the game right off the bat. Also consider you lose 150hp thru the transmission. So if you make 600 you get 450 to the rear wheel. go check 1uztech website and browse their performance packages. You'll get an idea of cost.
I just totally rebuilt the suspension, brakes, and new hubs and bearings all the way around on little Red. I used PBM Pro coil overs - very nice and highly tunable. I went with P2M for the suspension parts - nice product, and for brakes I rebuilt the stock calipers and used Powerstops Z23 option...