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Hello all, long time since I’ve been on the forum, wish it had been the same amount of time since I’ve had to work on my 7.4l vortec. Lol. I have a question please regarding that engine, I would like to upgrade the valvetrain but there are several to choose from and I’m uncertain of which ones...

So, I just returned home from the auto parts store and tried again, to no avail, to put my transmission in reverse....nothing... so I did as any normal genius would do, I revved the engine a little bit and.... still nothing.... or was it nothing? Wait a minute, put it in neutral, rev the engine...

Ok guys I’m back again. Lol. I think I may have finally solved my problem but wanted some advice before I started tearing things apart. So my 99 burb k2500 7.4l with 4l80e trans started losing reverse one day, it was slow to engage, then the next day it was completely gone, no feeling whatsoever...

Hey guys, how is everyone? So the trans is out on my 99 suburban k2500 so I’m going to rebuild the engine while I’ve got trans out because I think the rings are bad, it started using a lot of oil but not coming out as smoke from the tailpipe but my inside of the intake was coated in oil. Anyway...

Hello everyone! Been a little bit since I’ve been on the forum but is good to be back. I’ve got a bit of an issue with my transfer case that has me dumbfounded. Or at least it has me confused on which way to proceed as I’ve read about several possible causes and solutions. First, the 4wd hasn’t...

I have a 99 Suburban k2500 with the 7.4l 454, it has a 3" flowmaster exhaust and a k&n air intake, I drive it pretty fast for being 6000# so I'm curious what rebuild suggestions everyone has for the 4L80e trans that went out a couple months ago. I've taken it out already and pulled the guts but...

Can I swap a 0990 torque converter for an 0827 torque converter? If so, will there be any difference in the way my vehicle drives? I'm putting a used 4l80e in my 3/4 ton suburban that has the 454 in it while I rebuild my bad 4l80e, I'm not certain if the two converters are a direct swap since my...

Sorry guys, I'm a new guy, lol, I accidentally posted questions about working on my burb in this section this morning. I can't figure out how to delete it. Again, sorry

I'm wondering if there is any identifying marks on torque converters, if so where and how to decipher. Anyway my 4L80e went [censored] up so I bought a used one to drive on while I do a performance rebuild on my bad one. I'm wanting to verify that the two converters are the same stall and...

Yesterday I replaced the rear main seal in my 454, wasn't bad but thought since I already removed bad tranny to replace that I may as well replace everything that would be terrible to replace later with the tranny in place or having to remove it again. Anyway, upon removal of the oil pan i...