Radiator and 4wd question

[Todd D]

I recently acquired a 99 Tahoe 5.7, 3.42 axle, 4WD and I have a couple questions. It appears to have two full size radiators and was wondering why? Second, I have the floor shifter 4wd and it grinds when I shift it, which I have seen this before but since this is mine I want to be sure this is okay. Also can I shift into 4wd on the fly and is it speed regulated?

 

[lesterl]

2 radiators? are there 2 pressure caps? should be a condenser in front of the radiator.....

4x4 IDK, mine is pushbutton shift.... sorry...

 

[Todd D]

No there's only one cap. Thanks for the help!

 

[lesterl]

I have a dual-core radiator in my Sierra..... I wouldnt advise shifting on the fly of the manual transfer case, altho I suspect it would do it.....

 

[Todd D]

Thanks Lester!

 

[lesterl]

Hope I helped it some....