Can anyone prove GM used ATF in an NP205?

[82355]

Have a picture or a link to literature that says so?

Martin

 

[sweetk30]

yep drained it from my 40k mile original k30 205 tcase .

and its been shown as spec in the service books .

 

[82355]

I am aware of that. I want a picture or a link to prove it to someone else.

Martin

 

[sweetk30]

http://www.amsoil.com/mygarage/vehiclelookup.aspx?url2=1987+CHEVROLET TRUCKS+V30 4WD PICKUP+T

 

[super k]

Have your friend Google "GM NP205 lube specs"

 

[82355]

Have your friend Google "GM NP205 lube specs"

Nothing solid there.

Martin

 

[Chief Brody]

let me look...I got a few books

 

[ekajkrats]

In the 1972 truck service manual it says sae 80 or 90 gl-5 gear lubricant.

Do you need it to say np205 specifically? Or knowing that it was one of the tcases offered that year enough?

 

[Chief Brody]

eh...my old 1975 manual says SAE 80, SAE 90 GL-5 gear lubricant

 

[Fancy]

Im almost positive they do not use ATF! I can not find my manual that states it but i will keep looking All my manuals or for 208 and 241 as those are the cases i have which use ATF. I have contacted GM and they said all prior T-cases used gear oil

 

[4X4HIGH]

I'm pretty certain only the NP205's that have synchros use ATF and all others use 80/90 gear oil.

 

[Fancy]

Im positive the 208 and 241 use ATF All my manuals say ATF dex 2 or 3

 

[tRustyK5]

I'm pretty certain only the NP205's that have synchros use ATF and all others use 80/90 gear oil.

This, and I have no literature to back it up. Later model 205's were ATF.

 

[4X4HIGH]

Im positive the 208 and 241 use ATF All my manuals say ATF dex 2 or 3

Yes, ALL NP208 and NP241's use ATF. He wants to know about the NP205's use of lubricant.

 

[Fancy]

I'm pretty certain only the NP205's that have synchros use ATF and all others use 80/90 gear oil.

sorry miss read this... thought you where saying only the 205 used ATF

 

[Chief Brody]

I read that all NP205 cases up to and including 1981 used Gear Oil
and all NP205 cases from 1982 on used ATF

There was some kind of design change made to the NP205 after 1981

 

[4X4HIGH]

I read that all NP205 cases up to and including 1981 used Gear Oil
and all NP205 cases from 1982 on used ATF

There was some kind of design change made to the NP205 after 1981

Pretty certain that is when the synchro NP205 was introduced.

 

[nvrenuf]

I have a factory service manual for my '91, I'm pretty sure it spec'd ATF. I'll find it and post up the info tomorrow.

 

[Chief Brody]

Pretty certain that is when the synchro NP205 was introduced.

Yes, that is what it was...they were synchronized

I think somebody already said it...the deal is that synchronized NP205 uses ATF and non-synchonized NP205 uses gear oil

 

[82355]

I have a factory service manual for my '91, I'm pretty sure it spec'd ATF. I'll find it and post up the info tomorrow.

Can you take a (clear) picture, please?

Thanks.

Martin