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03-29-2008, 01:32 AM
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#1 |
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Pat
Join Date: Jan 2008
Location: canada, bc
Posts: 243
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need some help
what in are the torque specs for cab mounts on a 69 chevy 1/2 ton?
thanx |
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03-29-2008, 02:09 AM
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#2 |
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Senior Member
Join Date: Jan 2005
Location: Loveland Co.
Posts: 3,098
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Re: need some help
My service manual says 20 ft.lbs. for the radiator supports and front cab mounts and 50 ft.lbs for the rear cab mounts. That doesn't seem tight enough to me?
I just make them nice and tight and call it good.
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Chris 74 Custom Deluxe SWB 350/350/3.73’s 99 2wd Silverado RCSB 5.3/4L60/3.90’s http://www.classictrucks.com/feature...short_bed.html |
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03-29-2008, 02:22 AM
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#3 |
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Pat
Join Date: Jan 2008
Location: canada, bc
Posts: 243
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Re: need some help
cool thanx
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03-29-2008, 02:22 AM
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#4 |
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Registered User
Join Date: Nov 2007
Location: Sask Canada
Posts: 1,666
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Re: need some help
thats why there called "torque specs ". you feel that it may come loose feel free to put on thread locker on and re torque to the specks. it works.
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Trueman |
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03-29-2008, 03:32 AM
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#5 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: need some help
My manual give the specs as 20 lb.ft. for the radiator support and 50 lb.ft. for the number two position. The number three position being the rear on a truck is 20 lb.ft. The mounts are numbered by position starting from the front with the radiator support being number 1.
The radiator support position #1 and position # 3 mount bolts are 7/16-14 bolts whereas the large bolts in #2 position are 9/16-12. Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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03-29-2008, 03:55 AM
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#6 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: need some help
I go 3/4 past strip, then back em off 1 full turn
 IIRC, the cab mounts have sleeves in them, making it hard to "overcrush" the rubbers. I would stick to the book specs, & maybe run the truck for a while & recheck em crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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03-29-2008, 05:14 AM
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#7 |
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Senior Member
Join Date: Jan 2005
Location: Loveland Co.
Posts: 3,098
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Re: need some help
I'm a mechanic though, I torque stuff with my impact, no time to dig out the torque wrench.
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Chris 74 Custom Deluxe SWB 350/350/3.73’s 99 2wd Silverado RCSB 5.3/4L60/3.90’s http://www.classictrucks.com/feature...short_bed.html Last edited by powell72; 03-29-2008 at 05:14 AM. |
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