TCI Lock up kit install

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

72chevy2door

Full Access Member
Joined
Mar 19, 2014
Posts
193
Reaction score
24
Location
Florida
First Name
Jeff
Truck Year
1988
Truck Model
1500 Sierra Classic suburban
Engine Size
350
Hi guys if anyone is able to help me I would greatly appreciate it. I am converting my suburban from TBI to carburation and I purchased a lock up kit Summit part number TCI-376600. I'm wanting to use the vacuum switch so I don't have to mess with it ever again. It came with instructions, but for the dim witted ones like myself I don't understand them. I have a limited understandings of a transmission.

1988 GMC Suburban
350 CID
700-R4 transmission

Thank you to anyone that can help
 

72chevy2door

Full Access Member
Joined
Mar 19, 2014
Posts
193
Reaction score
24
Location
Florida
First Name
Jeff
Truck Year
1988
Truck Model
1500 Sierra Classic suburban
Engine Size
350
Anybody?
 

VAL

Full Access Member
Joined
May 29, 2012
Posts
893
Reaction score
55
Location
TUCSON, ARIZONA
First Name
VAL
Truck Year
1986
Truck Model
K10 SILVERADO
Engine Size
5.7
I did my lock-up not to long ago. It's fairly simple. The hardest part is removing the tranny pan, to re-wire the solenoid. The vacuum switch is connected to manifold vacuum only, the 4th gear pressure switch, and there's also a switch(if you choose to put one in) it works off the brake pedal, in the reverse function of your break light switch. It unlocks the converter when you hit the breaks or come to a stop. I used most of my oem stuff, but mine is an 86. Your 88 might work off the ecu, which you'll have to bypass if your going with a carb.
 

72chevy2door

Full Access Member
Joined
Mar 19, 2014
Posts
193
Reaction score
24
Location
Florida
First Name
Jeff
Truck Year
1988
Truck Model
1500 Sierra Classic suburban
Engine Size
350
Thank you for responding Val. Mine did work off the ecu but due to it going over to carb it is all useless. I just don't understand how to wire up the solenoid nor do I know which one to change. I have read there are two switches that look just about the same and it's one of those. Lol.
 

72chevy2door

Full Access Member
Joined
Mar 19, 2014
Posts
193
Reaction score
24
Location
Florida
First Name
Jeff
Truck Year
1988
Truck Model
1500 Sierra Classic suburban
Engine Size
350
Ahh. Thank you very much. That helps a lot. Whenever I do get to chance of pulling the pan I may have to pm you to ask a few questions
 

VAL

Full Access Member
Joined
May 29, 2012
Posts
893
Reaction score
55
Location
TUCSON, ARIZONA
First Name
VAL
Truck Year
1986
Truck Model
K10 SILVERADO
Engine Size
5.7
Ahh. Thank you very much. That helps a lot. Whenever I do get to chance of pulling the pan I may have to pm you to ask a few questions

Anytime!:grd:
 

72chevy2door

Full Access Member
Joined
Mar 19, 2014
Posts
193
Reaction score
24
Location
Florida
First Name
Jeff
Truck Year
1988
Truck Model
1500 Sierra Classic suburban
Engine Size
350
Well I haven't installed the kit yet but I did pull the kick down cable off and fluid came out. I caught the fluid in a clean pan well there is little specks of brass in it. Some larger that are about the size of a peice of sand maybe a little larger. I'm worried that my transmission may be shot. All I can do is I guess drop the pan do the kit and Let Her Eat! The truck hasent been drove in a couple years other than moving it in the yard. But the fluid has always been full. :shrug:
 

350runner

Full Access Member
Joined
Feb 9, 2013
Posts
2,858
Reaction score
224
Location
tx
First Name
Ceasar
Truck Year
82
Truck Model
c10
Engine Size
350
T.v. cable(throttle valve) cable is totally different then a kick down cable. The lil bit of fluid that came out when the engine was off and the trans pump isn't circulating fluid is fine and normal for any trans.

Sent from the dust in front of you!
 

Forum statistics

Threads
42,208
Posts
911,375
Members
33,712
Latest member
87R10_Cruising
Top