The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

SeventyOne · 11-05-2010, 04:04 PM

They look REALLY close to being fully seated from the rear - just hard to tell. I can more washers on there and hit them with the impact to see if that seats the studs more.

Let me get some manufacturer specs of the studs I am using vs the stockers.

Info from Napa Online
Stock ones that came with the hub/rotor: 2 1/8" length, .625 knurl diameter

Stock 14 bolt rear SRW studs: I am finding conflicting info. The stud I am measuring that I personally pressed out of the 14 bolt hub measures 3 1/4" long - the two SRW studs I find on Napa are either 2 3/4" or 3" in length (If i measure the stud in hand not counting the base it is 3"...). The knurl sizes of these two studs in Napa's database is .620 and .622. So they are .003-.005 of difference. Is this 3 to 5 thousands of an inch the "rocking" I am feeling when I twist on the hub?

On a side note when I re-assembled the 14 bolt I used DRW studs (swapped to disc) that were 3.5" in length so I know I don't have a dually stud making for the discrepancy.

What do you guys think of using the stock studs? Does anyone know of any issue with the thicker wheels (see option 3)?

11-05-2010, 04:04 PM	#61
SeventyOne Registered User Join Date: Mar 2007 Location: Oakland, Ca Posts: 1,370	Re: The "In over my head" build thread They look REALLY close to being fully seated from the rear - just hard to tell. I can more washers on there and hit them with the impact to see if that seats the studs more. Let me get some manufacturer specs of the studs I am using vs the stockers. Info from Napa Online Stock ones that came with the hub/rotor: 2 1/8" length, .625 knurl diameter Stock 14 bolt rear SRW studs: I am finding conflicting info. The stud I am measuring that I personally pressed out of the 14 bolt hub measures 3 1/4" long - the two SRW studs I find on Napa are either 2 3/4" or 3" in length (If i measure the stud in hand not counting the base it is 3"...). The knurl sizes of these two studs in Napa's database is .620 and .622. So they are .003-.005 of difference. Is this 3 to 5 thousands of an inch the "rocking" I am feeling when I twist on the hub? On a side note when I re-assembled the 14 bolt I used DRW studs (swapped to disc) that were 3.5" in length so I know I don't have a dually stud making for the discrepancy. What do you guys think of using the stock studs? Does anyone know of any issue with the thicker wheels (see option 3)? Last edited by SeventyOne; 11-05-2010 at 05:43 PM. Reason: more info...