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So I started hearing a squeal at low speeds 5-25 mph. I thought it was the t-case that I rebuilt. I pulled the t-case and turned the “Built” 4l80e to hear this. Anyone heard this before? Only 3k miles on the build. I’m calling Hughes Transmission on Monday!
yes one way...after your comment, I thought to turn a donor 4l80 I have in the garage and yes it sounds identical. Thanks for pointing that out. Im new to the auto trans game. Time to tear open the T-case.
While chasing this squeaking noise I pulled the transfer case. Tore it down to find that 135k miles took its toll on the main shaft splines that come in contact with the input shaft stub. They were damn near knife edged. The rear housing that holds the output shaft bearing was worn enough to move around freely and the rear housing output bushing was toast which also started to work on the drive shaft yoke.
Yes, I used the merchant auto pump cover. the pumps are all the same part number. Most of the parts in the 149 are the same as the 246 and others. However, one difference I came across is that on the 246, 261, and 263 they output shaft bearing and reluctor wheel slide on and off by hand with is. The 149 needed to be pressed on and pulled off, and the reluctor wheel is different. I damaged mine pulling it off but the replacement was only $20...even though I’m not even using the speed sensor in the t-case since the 4l80 swap.
I also got time to finish fabbing up the rest of the exhaust with the Borla xr1 and QTP 4” cutout.
10-06-2018 | 08:19 PM
