The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Looking For Info on 3-Speed Trans Ratios

**WorkinLonghorn** · 01-07-2007, 02:32 AM

Are you used to driving some other vehicle with a four speed? A T-10 truck 4spd has a 3.44 1st.My truck has a N.P.435CR which has a 4.56 1st.And of course the granny low on a 465 is even lower (6.55).But even 2nd in a 465 is still much lower than your 2.85 at 3.58.
If you have the standard 2.85 1st and 3.73 rear and 31" tires,you should be able to hit 43 MPH at 5000 RPM in 1st.-cougar

01-07-2007, 02:32 AM	#10
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,855	Re: Looking For Info on 3-Speed Trans Ratios Are you used to driving some other vehicle with a four speed? A T-10 truck 4spd has a 3.44 1st.My truck has a N.P.435CR which has a 4.56 1st.And of course the granny low on a 465 is even lower (6.55).But even 2nd in a 465 is still much lower than your 2.85 at 3.58. If you have the standard 2.85 1st and 3.73 rear and 31" tires,you should be able to hit 43 MPH at 5000 RPM in 1st.-cougar __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, 2nd owner, Work-Truck supreme. Best $300 I ever spent.