This is a gas rear shock conversion kit for a TR4A IRS, TR250 and TR6. 100% bolt on kit, no holes to drill and comes with gas KYB shocks and powered coated brackets. The kit mounts to where the stock shock mounts so the frame is already strong and the shock then goes through the trailing arm. Max tire size is 215/60-15 any bigger than this and you will be hitting the front sway bar when turning.
