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Re: Ok so why the torque tube?
Kip #1361653 Sun May 24 2020 12:28 AM
Joined: Feb 2004
Posts: 20,805
H
Boltergeist
Carmakers converted their production to open drivelines because of the "baby chicken" concept- - - - - -open drivelines are "CHEEP- - - - -CHEEP- - - - -CHEEP" to manufacture. They're nowhere near as reliable or durable as a well-designed torque tube, but they cost a lot less to make. Today's cars and trucks aren't made to last much beyond the warranty period, so open drivelines and multiple universal joints work well when they're expected to last "the life of the vehicle"- - - -which is engineered to be six months past the warranty coverage!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Ok so why the torque tube?
Kip #1361673 Sun May 24 2020 02:23 AM
Joined: Sep 2001
Posts: 30,283
ace skiver
Here are a few examples of vehicles that used the torque-tube after after 1954 [google.com] (the last year that GM used them).

Yes, GM light-trucks made a change to the cheaper (but, no better) open-driveshaft drive-line in 1955. However, a few performance vehicles used torque-tubes after 1954.


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: Ok so why the torque tube?
Kip #1361679 Sun May 24 2020 02:51 AM
Joined: Apr 2009
Posts: 548
H
Shop Shark
A little off topic but Corvette started using torque tubes from 1997 to at least 2019. Not sure if the 2020 model still uses them with the relocated engine.

Re: Ok so why the torque tube?
Kip #1361686 Sun May 24 2020 03:26 AM
Joined: Feb 2004
Posts: 20,805
H
Boltergeist
3rd.-generation Camaro and Firebird used an oddball setup with an open driveline and a long torque-reaction arm that was bolted to the rear axle housing and was anchored to a pivot point near the rear of the transmission. It served much of the same purpose as a torque tube without needing the precision machining involved in manufacturing a completely enclosed driveshaft. Ford used a torque tube rear axle on cars and light duty trucks from the 1920's Model T to 1948.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Ok so why the torque tube?
Kip #1361883 Mon May 25 2020 03:36 PM
Joined: Apr 2005
Posts: 1,753
R
Shop Shark
How about the infamous 61-63 Pontiac Tempest. It used a torque tube with the torque converter hanging off the rear. Not a great car.
They got it right in 64 however.
Fred

Re: Ok so why the torque tube?
Kip #1361884 Mon May 25 2020 03:51 PM
Joined: Feb 2004
Posts: 20,805
H
Boltergeist
Somewhere at General Motors headquarters there's a rubber room with a raving lunatic engineer locked up inside. Every now and then, he escapes and designs a vehicle. He's probably the guy responsible for such epic failures as the Corvair, the Tempest, the Vega, and a few other colossal flops from GM! The Tempest was a particularly stinky one- - - - -half a Pontiac V8, with a timing chain that would stretch so badly that it wore holes in the timing cover, and enough of a vibration problem that it unscrewed properly-torqued bolts, plus a curved solid driveshaft running under the floorboard at engine speed to the rear-mounted transaxle. That one had to be the bat-crap crazy engineer's crowning achievement! Running cast iron plated pistons in contact with aluminum cylinder walls in the Vega was a pretty close second, however!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Ok so why the torque tube?
Kip #1361895 Mon May 25 2020 04:54 PM
Joined: May 2015
Posts: 2,586
K
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
You forgot about the GM 6.2L diesel, Jerry. That same engineer decided he could convert a gasser to a diesel engine which resulted in a POS.


Kevin
First car '29 Ford Special Coupe
#2 - '29 Ford pickup restored from the ground up.
Newest Project - 51 Chevy 3100 work truck. Photos [flickr.com]
Busting rust since the mid-60's
Re: Ok so why the torque tube?
Kip #1361913 Mon May 25 2020 08:17 PM
Joined: Feb 2004
Posts: 20,805
H
Boltergeist
There were some killer drag race alcohol/nitro engines built on the 6.2 Diesel block, however. It was beefed up in places that kept it together better than the gas version with lots of blower boost. The GM Toro-Flow was an attempt to convert the GMC gasoline V6 to Diesel- - - -it was a colossal flop. When it finally hit the market, the only parts that interchanged with the gas engine were the oil pan and valve covers!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Ok so why the torque tube?
klhansen #1362063 Tue May 26 2020 08:05 PM
Joined: Sep 2011
Posts: 728
B
Shop Shark
Originally Posted by klhansen
You forgot about the GM 6.2L diesel, Jerry. That same engineer decided he could convert a gasser to a diesel engine which resulted in a POS.

The 6.2 wasn't a converted gas engine, you are thinking of the 5.7N olds 350. Made lots of money on those beasts, probably seen more of those scatter than anything else in almost 40 years now at dealership.


The 5.7 was available in 1/2 t 2wd pickups thru '81, had a 500 lb payload. The also made a V6 4.3 based on the V8, had more head bolts but still ---
The 6.2 diesel was bore out to 6.5L & went to the biggest pos EFI system, the DS series Standyne pump in '94.
Thankfully, Isuzu came to the rescue in '2001 with the 6.6 duramax.


BC
1960 Chevy C10 driver 235 T5 3.73 dana 44
1949 GMC 250 project in waiting
1960 C60 pasture art
G.M dealer tech since 1980 & counting
Re: Ok so why the torque tube?
Kip #1364865 Sun Jun 14 2020 02:20 PM
Joined: Mar 2020
Posts: 98
W
Shop Shark
high school 1972, we put a new clutch in my friends Rambler Ambassador SS, it had an enclosed drive shaft, we had to drop the whole rear end and slide it back, what a pain


woof359 Family 1952 3100 5 Window
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