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3.90 Ring and Pinion Gears needed
#1406401 Sat Apr 17 2021 01:01 PM
Joined: Sep 2015
Posts: 71
W
Wheelie Offline OP
'Bolter
Looking for a good set of 3.90 gears for my 1958 1/2 ton axle.

Thanks,
Steve

Re: 3.90 Ring and Pinion Gears needed
Wheelie #1406446 Sat Apr 17 2021 07:11 PM
Joined: Nov 2012
Posts: 336
M
Haunting the SBP since 2001
As long as you are gonna switch out the gears....now is a good time to upgrade to the 3.38 highway gears.

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Re: 3.90 Ring and Pinion Gears needed
Wheelie #1406465 Sun Apr 18 2021 12:10 AM
Joined: Sep 2015
Posts: 71
W
Wheelie Offline OP
'Bolter
I have 3.38's, don't care for them. When I make the swap, they will be available here on "The Bolt".

Steve

Re: 3.90 Ring and Pinion Gears needed
Wheelie #1406585 Sun Apr 18 2021 08:26 PM
Joined: Dec 2006
Posts: 178
E
'Bolter
PM sent

Re: 3.90 Ring and Pinion Gears needed
Wheelie #1406592 Sun Apr 18 2021 09:40 PM
Joined: Sep 2001
Posts: 31,092
'Bolter
Originally Posted by Wheelie
I have 3.38's, don't care for them. When I make the swap, they will be available here on "The Bolt".

Steve
What size/year engine, Steve?


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: 3.90 Ring and Pinion Gears needed
Wheelie #1406595 Sun Apr 18 2021 10:14 PM
Joined: Sep 2015
Posts: 71
W
Wheelie Offline OP
'Bolter
Hi Tim,

1956 235 with a 1983 T-5 and a 1958 axle in a 1946 that I use like a truck. The T5 has the 3.50 first and .78 overdrive so it's not awful if it was just a cruise around vehicle but I'd like a bit more tug for when it's loaded with firewood or mulch or whatever else the wife comes up with for me to do in my "free" time.

Steve

Re: 3.90 Ring and Pinion Gears needed
Wheelie #1406705 Mon Apr 19 2021 08:10 PM
Joined: Apr 2010
Posts: 473
6
'Bolter
As an option, you could get a new carrier for the new gears, then just swap the 3rd member when you need the lower gears, switch back when you need to run it on the freeway.
I am considering that option for my '62.

I had 3.90:1 gears in it stock, but swapped in 3.38:1 when I rebuilt the rear end 3 years ago.
I agree that there isn't as much low end grunt as when I had the 3.90:1 gears back there. Granny gear still helps, but it's not the same going into 3rd or 4th.
I still have my 3.90:1, but they are worn beyond what I would want to run again. I am going to look for a limited slip carrier before I do a second gear set though.

Good Luck!

Last edited by 62Stick; Mon Apr 19 2021 08:16 PM.

Moderated by  John Milliman 

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