NP205 adapter to transmission bolt torque? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Toro** · 01-22-2019, 12:27 PM

Does anyone know what torque the 4 bolts that mount a NP205 adapter to a TH350 should be tightened to?

thanks
Jon

**kwmech** · 01-22-2019, 12:55 PM

Never looked that up but, given that it is a 3/8'' grade 5 bolt going into aluminum I'd say no more than 30 lbs

**Toro** · 01-22-2019, 01:02 PM

That's close to what I was thinking. I know the transmission to engine block is listed as 25 - 30.

jeffahart · 01-22-2019, 01:50 PM

Here you go.

J

Name: np205.jpg
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**Toro** · 01-22-2019, 02:55 PM

Thanks for the replies, just found this in the service manual:

01-22-2019, 12:27 PM	#1
Toro Senior Member Join Date: Nov 2018 Location: Huntsville, AL Posts: 378	NP205 adapter to transmission bolt torque? Does anyone know what torque the 4 bolts that mount a NP205 adapter to a TH350 should be tightened to? thanks Jon

01-22-2019, 12:55 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,944	Re: NP205 adapter to transmission bolt torque? Never looked that up but, given that it is a 3/8'' grade 5 bolt going into aluminum I'd say no more than 30 lbs

01-22-2019, 01:02 PM	#3
Toro Senior Member Join Date: Nov 2018 Location: Huntsville, AL Posts: 378	Re: NP205 adapter to transmission bolt torque? That's close to what I was thinking. I know the transmission to engine block is listed as 25 - 30.

01-22-2019, 01:50 PM	#4
jeffahart Registered User Join Date: May 2012 Location: Scottsdale, AZ Posts: 1,921	Re: NP205 adapter to transmission bolt torque? Here you go. J __________________ White K20

01-22-2019, 02:55 PM	#5
Toro Senior Member Join Date: Nov 2018 Location: Huntsville, AL Posts: 378	Re: NP205 adapter to transmission bolt torque? Thanks for the replies, just found this in the service manual: Attached Images



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