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6.5L Diesel Engine Discuss the 6.5 GM diesel engine & associated components. Automatic transmission questions & problems belong in the 4L80/85 - 4L60E - 6L90 Transmission Forum

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Old 03-25-2020, 01:24 PM   #21 (permalink)
ArchaicAeronaut
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Originally Posted by ArchaicAeronaut View Post
Thanks for chiming in. Same question as above, what does that girdle kit do for me? And just for my sanity can you tell me if the bolt I have in the pictures is actually the 10mm outer? Also having installed these, what does the stud torque call for?
Sorry here are the pictures of my outer 6 main bolts, are they indeed the 10mm ones? The bolt head appears to read 10.9 anything significant about that? thanks

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Old 03-25-2020, 06:24 PM   #22 (permalink)
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The 10.9 is the tensile strength but that’s a 10mm bolt you have pictured.

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1996 Chevy K1500 Z71.....with '99 6.5 506 goodwrench van engine,88-93 6.2 diesel Napa y-pipe,'87 700R4,acdelco TP630F/Racor 20S fuel filter setup,Bosch non-turbo injectors,stanadyne blue tag 5088

1993 Chevy K1500 Z71...with 97' 6.5 TD 506 block,82' 6.2 rocker arms,stanadyne injectors,stanadyne blue tag 4911,DSG girdle,reman 89’ 700R4,Banks boost/pyrometer gauges,acdelco TP1069/TP943 fuel filter setup,4” diamond eye exhaust/2 piece crossover

2008 Mercedes Benz E320 3.0 V6 turbo diesel

2013 Volkswagen Passat 2.0 TDI

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Old 03-26-2020, 01:21 AM   #23 (permalink)
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Originally Posted by dieselolds View Post
The 10.9 is the tensile strength but that’s a 10mm bolt you have pictured.
Thanks Dieselolds, just wanted verification before I ordered the girdle.

Tensile strength 10.9, was wondering Thanks
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Old 03-26-2020, 02:09 AM   #24 (permalink)
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The GM part number for those bolts is 12552171
M10x1.5x68
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Old 03-26-2020, 11:42 AM   #25 (permalink)
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The GM part number for those bolts is 12552171
M10x1.5x68
Okay thanks, Glagulator I think I'm going with the studs at this point. Am I right in believing these bolts are not TTY?
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Old 03-26-2020, 12:02 PM   #26 (permalink)
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Stock are tty... studs are not.
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Old 03-26-2020, 12:51 PM   #27 (permalink)
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Originally Posted by sctrailrider View Post
Stock are tty... studs are not.

Thanks sctrailrider, I wasn't sure, but that makes sense to me.
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Old 03-26-2020, 08:13 PM   #28 (permalink)
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Quote:
Originally Posted by ArchaicAeronaut View Post
Thanks Dieselolds, just wanted verification before I ordered the girdle.

Tensile strength 10.9, was wondering Thanks
No problem
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1996 GMC Sierra ext.cab Z71....with new genuine GM 6.2 660 short block,4L80E/6.5TD cylinder heads,82' 6.2 rocker arms,acdelco TP1069/Racor 20S fuel filters,4" diamond eye exhaust,3.73 G80 locker,stanadyne injectors

1996 Chevy K1500 Z71.....with '99 6.5 506 goodwrench van engine,88-93 6.2 diesel Napa y-pipe,'87 700R4,acdelco TP630F/Racor 20S fuel filter setup,Bosch non-turbo injectors,stanadyne blue tag 5088

1993 Chevy K1500 Z71...with 97' 6.5 TD 506 block,82' 6.2 rocker arms,stanadyne injectors,stanadyne blue tag 4911,DSG girdle,reman 89’ 700R4,Banks boost/pyrometer gauges,acdelco TP1069/TP943 fuel filter setup,4” diamond eye exhaust/2 piece crossover

2008 Mercedes Benz E320 3.0 V6 turbo diesel

2013 Volkswagen Passat 2.0 TDI

Last edited by OkDually; 03-26-2020 at 08:32 PM. Reason: repaired emoji
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