Do yourself a favor and get the T56 Magnum (close ratio 2.66) instead of the TKO600. Newer design, smoother shifting, will handle high RPM shifts... I'm pushing 1200rwhp thru a stock unit and shifting at 7800rpm without issues. Also offers VSS and Mechanical speedo outputs in addition to multiple shifter locations.
Is it harder to make fit.... meaning cutting the trans tunnel.... yes; however once you put the carpet back it isn't a big deal. I put one into my '69 Chevelle and won't regret it.
__________________
Project: 1969 Chevelle, alum 5.3, GTS76 turbo, Chiseled Perf A/W intercooler, Holley Dominator EFI, Davis TC, JRi coilovers, 14" brakes, T56 Magnum. CTS-V Recaro seats!
Coffey Fabrication Nashville, TN doing the fabwork! 800rwhp+/25mpg+/9's@150mph goal 
https://lateral-g.net/forums/showthread.php4?t=52976
1993 Mazda FD RX-7, built LS7, T56 Magnum, Holley HP, Davis Tech TC, 8.8" 3.73 Cobra IRS diff, DSS axles, Ohlins coilovers, big brakes.
CCW 18x11 front 315/30/18's and 18x12.5 rear on 335/30/18 RA1's, 2850lbs
10.31@137mph 165mph Shift-Sector 1/2 mile speed
441ci AllPro headed motor and 200lb weigh reduction in the works....
|