yea, i know i ask this question every year, but i am old and senile.

which one is the GPR, front or rear?

 

The rear one.

 

TJC: I bought one from someone on this forum a couple of years ago, and it has worked just fine for me. It wasn't the big one, but he was claiming a heavier duty than Ford had.

 

yea, i am looking for another stancor. the one i got last year must have been defective cause it did not last 11 months.

but i need to put a napa unit in it till i can find another stancor.

 

You replaced the stock GPR with a Stancor and then you ask which is the GPR. What's up with that. Are you sure you should be doing this yourself?

You should just use the AIH relay for the GPR until you can get a Stancor.

 

I use Boss plow relay it HUGE one. Been on for 1 month. No problem. 10 sec of glow plug ON it start in -5oF.

 

the stancor i used is the 100 amp unit that looks just like the stock GPR.
and the AIH relay is bad. i know that because when it went the first time i swapped them and never replaced it.

 

Well nevermind.

Like Rosanne Rosannadana (a Gilda Radner character on SNL) used to say "If it's not one thing, it's another". And when it comes to Powerstrokes that is so true.

 

ain't that the truth!! eventually i will get a 200 amp relay, then i will never have to worry about it again.

 

Tom this is the GPR that you want to get

586-902 Stancor General Purpose / Industrial Relays

 

$52 for Stancor or Boss plow relay that only $17

 

yup, that be the one Jim. i just have to wait for it to get here

but i still have to put a GPR-109 in so the truck will start until it gets here

 

that boss plow relay is only rated at 50 amps, just like a starter relay or the GPR-109 from napa.

 

Where you see 50 amp label? They are HUGE than starter relay. It weigh heavier. Reason I pick this boss relay because I have see some fleet with those relay that still work for 10 years of commercial plow. Those would be running for about 15-30 hours every snowstorm so it see alot works than normal starter relay see.


Trombetta
12 Volts
4 Terminal
Intermittent Duty Starter Relay
Insulated Case
Plastic Housing
5/16"-24 Copper Contacts.
Narrow Curved L Bracket
150A Carry, 800A Inrush,25% Duty Cycle
References:
Replaces Trombetta 684-1251-212
Can Replace 3 Terminal Relay
634-1261-212 Just Add Ground Wire

 

Do u have a, boss part number ?