TCS Trans switch
 

-------Can anyone out there tell me where to get the TCS switch that threads into the 4-spd side cover? I believe it delivers the signal to retard or advance the spark in 4th gear on a 1970 LS6 Chevelle 4-spd. It has a round post on it, not a spade. New or used!!!....HELP!!!!..........Bill S

Re: TCS Trans switch
 

The switch was std on all the applications starting in 1970. Don't know if there were diff. part #'s for BB vs SB. Shouldn't be too hard to come by, why not try some of the trans guys to see what they have. Might be a junkyard item if you know where to look. I believe even the 6 cyl cars came with TCS, so if the switch is universal the solution may be easier. Good luck. TW

Re: TCS Trans switch
 

I thought they were being reproduced...If not I may have a used one. Remember seeing in a drawer...didn't look bad, I'll check if you like. Send me a PM.

ALbert

Re: TCS Trans switch
 

ALbert,

-------Thanks for your offer. May take you up on it if a new one Im chasing doesnt pan out............Bill S

Re: TCS Trans switch
 

olredalert;

I have seen them on Ebay in NEW GM packaging. Have you checked with your local Gm parts dept.?

I think this is it:

Group 4.075 SWITCH ASSY.— CLIP— LEAD ASSY.— RELAY ASSY., Transmission, Smog Control

3961567 All (exc. A.T.) . trans. control spark. Should run you about $12.00

Greg Roberts

Re: TCS Trans switch
 

www.gmpartsdirect.com has it for under 7 bucks.

Re: TCS Trans switch
 

--------Thanks to all!!! I was erroneously told that the part was discontinued. I know better than that generally. Should have checked at my local counter.........Bill S

Re: TCS Trans switch
 

Have one here if you can't find one !