Painless Wiring R4 Transmission Torque Converter Lock-Up Kit made by Painless Wiring, for as low as $ These converter lockup kits from Painless give you an inexpensive way to automatically lock up the torque converter in 4th gear, when retrofitting a GM R4 transmission into an early non-computer controlled vehicle. Does this lock up kit do away with having to install a switch.

I am seeking opinions on the painless r4 lock up kit.

I'm planning on re- wiring my lockup to the ECM, but I have a tuneable ecm that I can. THR4 Transmission Torque Converter Lock-Up Kit P/N This THR4 Transmission Torque Convertor Lock-Up Kit takes all the guesswork out of controlling the lock-up function on your THR4 overdrive transmission.

A provided vacuum controlled switch and 4th gear pressure. Painless Wiring: Now you can control the lock-up function on your R: Painless Wiring: - R Stand-Alone Torque Converter Lockup Kit everything to complete the installation and fits any R4 GM transmission.This easy-to-install lockup wiring kit for R4 and R transmissions from TCI® allows hands-free, automatic activation of the torque converter clutch in 4th gear under stable engine operation, and disengages the clutch when accelerating or down shifting.

Find Painless Performance R4 Converter Lock-Up Kits and get Free Shipping on Orders Over $99 at Summit Racing!

These converter lockup kits from Painless give you an inexpensive way to automatically lock up the torque converter in 4th gear, when retrofitting a GM R4 transmission into an early non-computer controlled vehicle. The kits include everything you need for an easy.

Feb 25,  · Durable and r4 do not belong in the same sentence! 4l60e,4l80e,yes. rjunk no way.

Read Customer Testimonials! Read testimonials from people whose vehicles were tuned through Solomon's tuning service: from stock L99 Caprices to high-compression LT1 transplants!

Product Description 87 Valve body, Kit lets you make Torque Converter lockup-no wires.R4 Lock Up Kit | eBayLT1 PCM Tuning - Customer Testimonials