Struggle to obtain proper temp gauge sending unit, '88 C3500

['88C3500]

Hello All,

Wells TU65 worked [sold at Autozone]. It is 1/2" NPT -most big blocks, although their TU66 [3/8" NPT -most small blocks has the same specs.

You can search part numbers and find specs here;

http://www.wellsve.com/parts/?s=1

I tried a Standard TS71 and a Delphi sender that were listed as being correct, but they both read 30* or more high.


Dave

 

['88C3500]

On a related note, my truck has an auxiliary fan in the grill. The stock switch [in the right head] closes at 229*, opens at 219*.

I mounted a trans cooler behind the fan, and I wanted it to come on sooner. I found a switch that closes at 210, and opens at 205. Standard TS136, '86 to '89 buicks. It's 3/8 npt, so I had to use a bushing.

It's pretty pricey, but I found one on ebay for $12.89 [in Puerto Rico!, it was here in 4 days, btw] He has more.