Can 7.2k Axle Trailer Hub Be Replaced with 8k Trailer Axle Hub

Question

Question:

Can I replace the 7.2k wheel end with 8k wheel ends?

asked by: Jason S

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Expert Reply:

Trailer hubs that are designed to fit 7.2k axles and 8k axles use the same size spindle so if you wanted to go with an 8k hub in place of your 7.2k hub you certainly could like with the # 8-285-11UC3 which has an 8 on 6-1/2 inch bolt pattern with 9/16 inch diameter wheel studs.

expert reply by: Jameson C

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Answer 1

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 2

A BT8 spindle would have a diameter of .99 of an inch where the bearings would both install and would have a diameter of 1.24 where the great seal would ride. That would require a hub part #AKIHUB-440-2-1K for an idler hub. A BTR spindle would have…

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Answer 3

Hey Jaime, yes you can replace your 25-1/4 inch 3,500 lb axle leaf springs with a 5k rated axle spring like the part #e44SR. This will increase the suspension's weight capacity and might make the ride quality a little rougher but it would fit and…

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Answer 4

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 5

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 6

Hey Scott, so the braking and hub components of a Dexter 3,500 lb axle made in 1999 would be the same as what's currently used so those components would transfer over. So a bare axle like the part #T3584F-EZ-8974 would work for you but you'd…

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Answer 7

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

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Answer 8

If you take a look at the provided photo, you can see the pertinent dimensions of the #TRU37FR spindle.

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Answer 9

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 10

I spoke with my contact at Trailair and from your serial number we were able to determine that your trailer came with a 1621 HD pin box which is a long pin box style. I was unable to obtain the exact part number for your Trailair pin box but from the…

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Answer 11

I am sorry but we do not have an AC cover with those dimensions. The closest option we have is the Replacement RV Air Conditioner Cover for Penguin and Dometic Air Conditioners item #AT3308046006 which measures 40-1/2" long x 29" wide x…

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Answer 12

If you take a look at the provided photo, you can see the important dimensions of the #TRU37FR spindle.

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Can 7.2k Axle Trailer Hub Be Replaced with 8k Trailer Axle Hub

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