Gruven heater core T-connectors

[Rocket Man]

Not sure what the problem was... works now.
View attachment 229780

I don’t understand why they didn’t just make the nipples longer in order to accommodate better clamps. One is long enough, why not the other 2?

 

[kbuskill]

I don’t understand why they didn’t just make the nipples longer in order to accommodate better clamps. One is long enough, why not the other 2?

This was discussed and Paul asked me if there was room... I told him that the two larger ones could probably be extended but the smaller one that feeds the rear heater core might pose a problem.

As it is right now, it already pushes the rear metal lines back toward the A/C accumulator so not a ton of room without possibly bending/massaging the lines.

All of this talk about clamps and what not.... in all truth the coolant system runs less than 20psi, more like 15psi, so it's not like you have to over tighten the clamps for fear of it blowing a line off.

Worm clamps are not my favorite but I will take them all day long in this application VS the plastic T-connectors. My 2 bits.

 

[Sam Harris]

Way off topic, but I’m not talking about clamps.. so.. do the Gruven mirror gears work on the gmt800 or only the gmt900? Looks from their site, like they’re specific to the gmt900 platform.

 

[kbuskill]

Way off topic, but I’m not talking about clamps.. so.. do the Gruven mirror gears work on the gmt800 or only the gmt900? Looks from their site, like they’re specific to the gmt900 platform.

My guess is they are GMT900 specific or else Gruven would market them for both. Give Paul at Gruven a call or send him an email and I'm sure he can give an answer with certainty.

 

[ivin74]

My guess is they are GMT900 specific or else Gruven would market them for both. Give Paul at Gruven a call or send him an email and I'm sure he can give an answer with certainty.

I think they work on the gmt800, @Rocketman did you install the Gruven heater core T-connectors on your SUV?

 

[gooffeyguy]

I think they work on the gmt800, @Rocketman did you install the Gruven heater core T-connectors on your SUV?

He was asking about the mirror gears

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

 

[ivin74]

He was asking about the mirror gears

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

My bad.

 

[Geotrash]

Question for those who have used these Gruven tees. I see that they also now sell billet heater core couplers for these trucks. Should I buy them in addition to the tees? And what about the tee down near the water pump? Can the Gruven tee be used to replace that one too? 2012 Denali with rear aux heat.

 

[kbuskill]

Question for those who have used these Gruven tees. I see that they also now sell billet heater core couplers for these trucks. Should I buy them in addition to the tees? And what about the tee down near the water pump? Can the Gruven tee be used to replace that one too? 2012 Denali with rear aux heat.

View attachment 237890 View attachment 237891

The straight connector is not needed for trucks with rear heat.

You CANNOT use a Gruven T-connector to replace the Y-connector down by the water pump BUT you can buy the Dorman 626-553 which is a direct replacement made from aluminum. That is what I used.

https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/113134563530





The only way you can buy it is with hoses. They don't sell it separately, I called Dorman and asked.

 

[donjetman]

Nevermind
Ken answered my question​