C-6 Speedo Gear
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C-6 Speedo Gear
I posted this on the transmission/drivetrain forum but thought I would post here also since I haven't received a response from that forum yet.
C-6 Speedo Gear
<HR style="COLOR: #666666" SIZE=1><!-- / icon and title --><!-- message -->I picked up a 390 and C-6 from a guy that pulled them from a truck he had scrapped. Didn't get the year of the truck 197?
I am trying to find out what year C-6 I have so that I cold get the correct speedo gear assembly/speedo cable for the truck.
The tranny calls for a speedo gear-cable unit (one piece unit)that slides into the housing and is heald on with a retainer screw instead of having the gear assembly threaded onto the housing and having the cable threaded into the assembly.
The tranny has a flanged yolk for the 2 piece drive shaft instead of slip yolk.
The tranny that was in the truck when I got the truck was a 4 wheel drive tranny that was originally set up to drive a divorced transfer case and the tail housing was never set up for a speedo gear so I can't trade out tail shaft housings between the two
Any help would be greatful
C-6 Speedo Gear
<HR style="COLOR: #666666" SIZE=1><!-- / icon and title --><!-- message -->I picked up a 390 and C-6 from a guy that pulled them from a truck he had scrapped. Didn't get the year of the truck 197?
I am trying to find out what year C-6 I have so that I cold get the correct speedo gear assembly/speedo cable for the truck.
The tranny calls for a speedo gear-cable unit (one piece unit)that slides into the housing and is heald on with a retainer screw instead of having the gear assembly threaded onto the housing and having the cable threaded into the assembly.
The tranny has a flanged yolk for the 2 piece drive shaft instead of slip yolk.
The tranny that was in the truck when I got the truck was a 4 wheel drive tranny that was originally set up to drive a divorced transfer case and the tail housing was never set up for a speedo gear so I can't trade out tail shaft housings between the two
Any help would be greatful
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Joined: Nov 2002
Posts: 3,447
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From: Littleton, CO
Originally Posted by woods
[b]The tranny that was in the truck when I got the truck was a 4 wheel drive tranny that was originally set up to drive a divorced transfer case and the tail housing was never set up for a speedo gear so I can't trade out tail shaft housings between the two
Any help would be greatful
Any help would be greatful
--Mike
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Mike,
Thanks for the reply.
I will look for a 1972 speedo cable.
What I meant by not being able to trade out the tail shaft assembly was that the tail shaft assembly from the other tranny wouldn't work because it was never assembled with a speedo gear assembly. The tail housing had a blank where the gear would have went.
Thanks, Ken
Thanks for the reply.
I will look for a 1972 speedo cable.
What I meant by not being able to trade out the tail shaft assembly was that the tail shaft assembly from the other tranny wouldn't work because it was never assembled with a speedo gear assembly. The tail housing had a blank where the gear would have went.
Thanks, Ken
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Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
Ken, You can get the cable and other needed parts, but your (teeth count) gear on the end will have to be determined by your rear ratio, including tire size. I pick up the gears while visiting the salvage yards. Folks pull the tranny and leave them on the end of the cable, or on the ground. 17-20 teeth are very comon and I believe the C6 uses a right twist.
Do you know your ratio and tire size?
John
Do you know your ratio and tire size?
John
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John,
Thanks for the reply.
It looks like I need a 17 tooth gear.
I am running 373 gears and 235/85/16 tires(31 inch)
I counted 6 rungs on the gear on the output shaft but I was told by a builder that it is probably 7 turns or teeth as you call it. I can't see the gear but I felt 6 notches on the gear.
I think I found a speedo assembly locally. I will look at it tonight.
I will just need to pick up a gear.
Thanks for all the help,
I knew I would get a better response here than the drive train section.
Thanks,
Ken
Thanks for the reply.
It looks like I need a 17 tooth gear.
I am running 373 gears and 235/85/16 tires(31 inch)
I counted 6 rungs on the gear on the output shaft but I was told by a builder that it is probably 7 turns or teeth as you call it. I can't see the gear but I felt 6 notches on the gear.
I think I found a speedo assembly locally. I will look at it tonight.
I will just need to pick up a gear.
Thanks for all the help,
I knew I would get a better response here than the drive train section.
Thanks,
Ken
