where is the axle code for a 66 ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

don koebelin · 01-12-2005, 12:20 PM

i have two 66's and need to find the axle code on them ...any help would be appriciated ...thanks dk

chevy283 · 01-12-2005, 01:35 PM

on the front of the tube on the passinger side i asked the same thing

don koebelin · 01-12-2005, 03:26 PM

how large are the letters? i have looked at both axles and wire brushed and cleaned them , are they near the pumpkin or the drum ? any other help ????? thanks in advance .dk

chevy283 · 01-12-2005, 05:23 PM

mine 65 was in the midder under the brake line mine

don koebelin · 01-12-2005, 06:18 PM

does your brake line run on the backside of the axle toward the rear bumper ? thanks ......dk

chevy283 · 01-12-2005, 07:02 PM

its under where the black rubber hose connects to the metal hose

chevy283 · 01-12-2005, 07:05 PM

yes mine brake line run on the backside

KSever · 01-12-2005, 08:41 PM

Ok, so I have to ask. What's the axle code going to tell you when you find it?

chevy283 · 01-12-2005, 09:00 PM

the ratio

Slammed66 · 01-13-2005, 03:53 AM

pop the cover the ratio is stamped into the ring gear it should say Gm and then 11:41 or sumthin and that a 3:73 which it most likely is

60-66 Nut · 01-13-2005, 12:14 PM

If the ratio is what you're trying to find, just jack up one wheel, mark it and also mark the driveshaft, then turn the wheel two full revolutions and count the driveshaft revolutions. If the rear end happens to be positive traction then you have to turn both wheels one even revolution. The total number of driveshaft revolutions gives you the ratio; ie 3.5 turns would be a 3.50:1, etc.

60-66 Nut

don koebelin · 01-13-2005, 12:26 PM

thanks for all your help ...i'll look at it this weekend ....dk

01-12-2005, 12:20 PM	#1
don koebelin Registered User Join Date: Jan 2005 Posts: 28	where is the axle code for a 66 ? i have two 66's and need to find the axle code on them ...any help would be appriciated ...thanks dk

01-12-2005, 03:26 PM	#3
don koebelin Registered User Join Date: Jan 2005 Posts: 28	???? how large are the letters? i have looked at both axles and wire brushed and cleaned them , are they near the pumpkin or the drum ? any other help ????? thanks in advance .dk

01-12-2005, 06:18 PM	#5
don koebelin Registered User Join Date: Jan 2005 Posts: 28	front does your brake line run on the backside of the axle toward the rear bumper ? thanks ......dk

01-12-2005, 08:41 PM	#8
KSever Registered User Join Date: Apr 2004 Location: Dodgeville, Wisconsin Posts: 22	Ok, so I have to ask. What's the axle code going to tell you when you find it? Last edited by KSever; 01-12-2005 at 08:43 PM.

01-13-2005, 03:53 AM	#10
Slammed66 Needs a Big Block Join Date: Oct 2003 Location: Red Deer , Alberta Posts: 1,198	pop the cover the ratio is stamped into the ring gear it should say Gm and then 11:41 or sumthin and that a 3:73 which it most likely is __________________ 1964 Short box On dropmembers and billets 1962 Suburban family cruiser 1972 K10

01-12-2005, 01:35 PM	#2
chevy283 Registered User Join Date: Dec 2004 Location: wilson oklahoma Posts: 367	on the front of the tube on the passinger side i asked the same thing

01-12-2005, 05:23 PM	#4
chevy283 Registered User Join Date: Dec 2004 Location: wilson oklahoma Posts: 367	mine 65 was in the midder under the brake line mine

01-12-2005, 07:02 PM	#6
chevy283 Registered User Join Date: Dec 2004 Location: wilson oklahoma Posts: 367	its under where the black rubber hose connects to the metal hose

01-12-2005, 07:05 PM	#7
chevy283 Registered User Join Date: Dec 2004 Location: wilson oklahoma Posts: 367	yes mine brake line run on the backside

01-12-2005, 09:00 PM	#9
chevy283 Registered User Join Date: Dec 2004 Location: wilson oklahoma Posts: 367	the ratio

01-13-2005, 12:14 PM	#11
60-66 Nut Professional Beer Tester Join Date: Aug 2004 Location: Louisiana Posts: 453	If the ratio is what you're trying to find, just jack up one wheel, mark it and also mark the driveshaft, then turn the wheel two full revolutions and count the driveshaft revolutions. If the rear end happens to be positive traction then you have to turn both wheels one even revolution. The total number of driveshaft revolutions gives you the ratio; ie 3.5 turns would be a 3.50:1, etc. 60-66 Nut __________________ 60 Ford F100 Custom Cab 61 Apache Short Fleetside 64 C10 Short Stepside 65 C80 409 V8 5spd(X-Firetruck) 83 GMC 350 Olds Diesel 85 GMC Short Bed 86 GMC Short Bed 90 GMC R3500 Crew Cab 92 GMC 1500

01-13-2005, 12:26 PM	#12
don koebelin Registered User Join Date: Jan 2005 Posts: 28	ok thanks for all your help ...i'll look at it this weekend ....dk

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