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#1 |
Wide Eyed User
Join Date: Mar 2008
Location: Las Vegas, Nevada
Posts: 261
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Which Hump?
Can you guys help?
Here are a couple shots... not sure which one I have... thanks!! ![]() ![]()
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1962 Chevy P/U SB Fleetside 350/350 2.5/5 static drop My Build: http://67-72chevytrucks.com/vboard/s...d.php?t=294723 Final (as final can be ![]() |
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#2 |
Shloooooong bed member #2
Join Date: Aug 2008
Location: Millington Tn.
Posts: 1,864
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Re: Which Hump?
what are you asking?
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David, Daughters 66 truck: http://67-72chevytrucks.com/vboard/s...d.php?t=484601 Learning to drive a 3 on the tree: http://www.youtube.com/watch?v=CcCMvRgBo1Q |
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#3 |
Registered User
Join Date: Jun 2009
Location: dinuba, ca
Posts: 623
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Re: Which Hump?
i think he means which transmission hump does he have ie: high, low manual, auto... etc i have no knowledge of these but just thought id chime in...
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A girl phoned me the other day and said... Come on over, there's nobody home. I went over. Nobody was home. -Rodney Dangerfield ![]() .......THE ROAD TO HELL IS PAVED WITH GOOD INTENTIONS..... ![]() ![]() Last edited by 63deluxfleet; 11-16-2009 at 02:18 PM. |
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#4 |
Shloooooong bed member #2
Join Date: Aug 2008
Location: Millington Tn.
Posts: 1,864
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Re: Which Hump?
Thats what I was thinking also...
If that is what you want to know, you do have the high hump...
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David, Daughters 66 truck: http://67-72chevytrucks.com/vboard/s...d.php?t=484601 Learning to drive a 3 on the tree: http://www.youtube.com/watch?v=CcCMvRgBo1Q |
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#5 |
Wide Eyed User
Join Date: Mar 2008
Location: Las Vegas, Nevada
Posts: 261
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Re: Which Hump?
Yup.. and thanks!!! just wanted to be sure... I was getting mixed up because it is removable and I thought I read somewhere the removable was the low.
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1962 Chevy P/U SB Fleetside 350/350 2.5/5 static drop My Build: http://67-72chevytrucks.com/vboard/s...d.php?t=294723 Final (as final can be ![]() |
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#6 |
Registered User
Join Date: Feb 2008
Location: Sidney,b.c.
Posts: 4,425
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Re: Which Hump?
it ist he high hump that is removable for the 4 spd trans. some l/humps were removable. did your truck have the hydramatic in it by any chance?. I see that yours has a place for the cutout for the shifter rof the 4 speed
ron |
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#7 |
Account Suspended
Join Date: May 2005
Location: Kansas City, KS
Posts: 3,906
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Re: Which Hump?
All automatics, both Powerglides & Turbo Hydra Matics, and 3-speeds on the column, came from the factory with low hump tranny covers...some removeable, some not. The removeable high hump trucks had granny-low 4-speed transmissions.
Last edited by LILRED66; 11-16-2009 at 04:13 PM. |
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#8 |
Registered User
Join Date: Feb 2008
Location: Sidney,b.c.
Posts: 4,425
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Re: Which Hump?
[QUOTE=LILRED66;3623206]All automatics, both Powerglides & Turbo Hydra Matics, and 3-speeds on the column, came from the factory with low hump tranny covers...some removeable, some not. The removeable high hump trucks had granny-low 4-speed transmissions.[/QUOTE
we are using 2 different transmissions or are talking about 2 diffierent transmissions here. I mentioned the hydramatic and you mentioned the turbo-hydramatic. actually upon checking the hydramatic was used in trucks up to 1964 when it was replaced by the aluminum cased turbo-hydramatic, eg; turbo 350-400 the hydramatic was a cast iron cased transmission quite differently designed and built from it's later model, the turbo-hydramatic though the year of the truck is not mentioned the frt door posts place it within the timeframe that the hydramatic was still being made and utilized. they quite using the hydramatic ( this model was basic from from 1957) in car after 1960 when another a/case hydramatic or turbo-hydramatic was employed called the slimjim. the hydramatic was a taller unit than it's follower ron Last edited by padresag; 11-16-2009 at 05:36 PM. |
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#9 |
Account Suspended
Join Date: May 2005
Location: Kansas City, KS
Posts: 3,906
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Re: Which Hump?
I pulled the terminology from the Chevrolet Truck encylopedia and the General Motors Silver Book, so I was simply stating that there were two automatics available in the '60-'66 Chevy trucks...one was a 2-speed Powerglide and the other was a 3-speed Turbo Hydra Matic, per the published literature.
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#10 |
Registered User
Join Date: Feb 2008
Location: Sidney,b.c.
Posts: 4,425
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Re: Which Hump?
actually there were 4 between 60-66. there was a cast iron p/glide which was used up until 62 as was the cast iron hydramatic. in 63 the aluminum powerglide was introduced and put into production and the aluminum cased turbo-hydramatic in 64
both the cast iron and the aluminum p/glides were a 2 speed. the cast iron hydramatic which was used from 53-62 was a 4speed while the aluminum turbo hydramatic was a 3 speed ron |
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#11 |
Account Suspended
Join Date: May 2005
Location: Kansas City, KS
Posts: 3,906
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Re: Which Hump?
In any event, there were two humps used in '60-'66 Chevy/GMC, series 10, 20 & 30 trucks...the high hump, coupled with the 4-speed transmissions (SM420 & SM465) and the low hump, coupled with the 3-speed manual transmissions & 2-speed and 3-speed automatic transmissions. The casting material of the transmission did not determine the hump style, so I wasn't trying to give a dissertation on the evolution of the automatic transmissions, simply a general rule-of-thumb on what hump style came with what transmission type.
Thanks for your input on the evolution of the Powerglide and Hydra Matic transmissions. I will keep it handy. |
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#12 |
Registered User
Join Date: Feb 2008
Location: Sidney,b.c.
Posts: 4,425
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Re: Which Hump?
"The casting material of the transmission did not determine the hump style, so I wasn't trying to give a dissertation on the evolution of the automatic transmissions, simply a general rule-of-thumb on what hump style came with what transmission type.
" and what I am referring to is the external dimensions of the the cast iron hydramatic required that it used the high hump in the years that it was utilized ron I did re and re quite a few hydramatics back in the 60's .hydramatics. I also installed a few olds and caddy engs w/hydramatics in some of my early vehicles |
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#13 |
Easy Does It
Join Date: Apr 2007
Location: Dirdy Mo , North Carolina
Posts: 450
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Re: Which Hump?
Are the bolt in high hump pans interchangable with the low hump?
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#14 | |
Account Suspended
Join Date: May 2005
Location: Kansas City, KS
Posts: 3,906
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Re: Which Hump?
Quote:
I sold a factory 3-speed automatic a few months ago, with a factory low hump, so it must have been one of the exceptions. I wil be on the lookout for others equipped this way...maybe they are more rare...an automatic with a high hump. |
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#15 | |
Registered User
Join Date: Feb 2008
Location: Sidney,b.c.
Posts: 4,425
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Re: Which Hump?
Quote:
Ron |
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#16 | |
Registered User
Join Date: Feb 2008
Location: Sidney,b.c.
Posts: 4,425
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Re: Which Hump?
Quote:
ron |
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#17 |
Registered User
Join Date: Feb 2008
Location: Sidney,b.c.
Posts: 4,425
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Re: Which Hump?
this is a picture of a hydramatic which was used fro 53 thru to 62.
![]() By rondavid, shot with E8800 at 2009-11-22 high hump 60-62 w/hydramatic. this is also a different h/hump as you can notice that the firewall piece is also bolted in instead of being wlded in. the join line between the firewall and the hump comes across staggered and on a diagonal ![]() By rondavid, shot with E8800 at 2009-11-22 ![]() By rondavid, shot with E8800 at 2009-11-22 ![]() By rondavid, shot with E8800 at 2009-11-22 ![]() By rondavid, shot with E8800 at 2009-11-22 ![]() By rondavid, shot with E8800 at 2009-11-22 ron |
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#18 |
Account Suspended
Join Date: May 2005
Location: Kansas City, KS
Posts: 3,906
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Re: Which Hump?
Yes, but the intermediate tranny front cover is not interchangeable from the low hump to the high hump.
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#19 |
Account Suspended
Join Date: May 2005
Location: Kansas City, KS
Posts: 3,906
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Re: Which Hump?
That would also be a GMC truck and I can't tell you much about those. In any case, I learn something new everyday! I attempt to go by what I read, coupled with what I see in the field, when formulating my opinion, but I see there are no hard, fast rules when it comes to the '60-'66 Chevy/GMC trucks.
I have a customer telling me about his '61 Chevy C10, that was sold as a "farm addition", without turn signals and only one taillight. It also only has two fused circuits in the factory fuse block. I have never seen, in person, or heard of a "farm addition" truck from the '60-'66 Chevy/GMC line. In any case, thanks for sharing your infinite wisdom. By the way, I have never seen that tranny in your picture...what a dinosaur. |
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#20 |
Registered User
Join Date: Feb 2008
Location: Sidney,b.c.
Posts: 4,425
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Re: Which Hump?
the hydramatic shown is the old workhorse. it was used in 53-56 olds,caddies and pontiacs; also chev and gm trucks from 53-62. in 57 the hydramtic Jetaway trans was introduced to the car divisions but stayedd the same in light trucks up to 62.
. this was also the trans that launched B & M's reputation as these were built for drags. I did work for this co. http://www.tcsproducts.com/ back in the mid 60's and was more then likely the first to develop a stall speed convertor here and that was done by modifying the stator. built one for ford in 65. the co. had a different name then. B.C. automatics and the convertor shop was Crestwood engineering. the fellow that owns it now started working there in about 61. he was racing in vegas about 2 weeks ago running in the 7.'s. Bob Marshall motors Back to the hydramatic. perhaps the reason for the high hump (may not have been for physical clearances) but for room to adjust the bands. there were 2 adjs on the top just in from the side cover and for the dipstick/filler tube. in the earlier models there must have openings in the floor for the adj and to check fluid level as there was no filler tube as such as it was just a cap with dipstick attached they were also a little heavier than your modern turbo-hydramatic ron Last edited by padresag; 11-22-2009 at 07:08 PM. |
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