Lowering the rear involved the suspension, but it doesn't actually lower the suspension... the rear axle is the same distance above the road as it was when it left the factory. I didn't make any changes to the the front except replace the coils with fresh factory coils, it sits at factory height.
From a visual perspective, this mod eliminates the jacked up rear end / empty vintage moonshine runner look associated with RCSB Tundra trucks.
I have owned this old truck for just over 2 years, and I have enjoyed the entire process of making it mine. Looking toward the future... I as much as I like the TOYO tires, I am kicking around the idea of replacing them with Michelin performance tires that are slightly taller than stock. Other than that, I will continue to clean up the vehicles interior & exterior appearance while racking up more miles.
I plan to have a Super White 'SPORT' bumper & grille up front at some point. Other than that I will continue to clean the exterior, touching up rock chips & scratches as I go, and I will probably have the PDR guy go over the body again.
I am thinking about installing the Auburn LSD - PRO.
I said the resonator was incompatible with the shortened tail pipe, but that's not true.
Truth is, I did a shitty job of installing the cat-back. While I was installing the blocking plate that Keith sent me, I inspected my installation... the bolts on both ends of the cat-back weren't as tight as I thought they were and this caused leaks. I corrected my mistakes that day and drove with the blocking plate for a couple months, it sounded great but it was a little loud, and there was some drone at different RPMs. I have Neuropathy in both arms & hands, and this condition makes wrenching difficult. I can't always feel if I have tightened a bolt / screw enough, and I have over tightened to the point of breakage... it's easier for me to go back and tighten up what's loose.
Long story getting longer, today I crawled back under the truck and re-installed the helmholtz resonator that came with my @dirtydeeds cat-back. The difference is night and day, the system is much more civilized, it's quieter and there is no drone - none. Sadly, the exhaust burble is virtually undetectable now, and I will miss that sound.
EDIT: When it came to killing drone there was an incompatibility issue with the standard resonator and a tail pipe that had been cut, Keith @ BAMuffler recognized this issue and sent me a new resonator that is 6" longer than the standard one.
Bottom line, I am even more pleased with my BAMuffler
292,222 mile Chinese virus update ... items I've added or replaced:
Marsauto low beam LEDs, I'll install a set of high beam LEDs soon.
ZEVO LED bulbs in the courtesy lamps in brand new OEM lenses.
Newer OEM side mirrors with chrome caps, this killed the whistling problem.
New OEM wiper arm on the drivers side.
New OEM arm rest cover on the drivers door.
Added OEM door sill protection.
OEM/TRD radiator cap with a slightly higher pressure rating.
I recently cleaned the MAF & throttle body, and the truck is performing great.
I picked up a set of BBS-FORGED alloys with Michelin LTX A/T² tires. The wheel and tire combo weighs 67 to 68 pounds, and they improve the ride quality, acceleration and braking... well worth the upgrade. I didn't care for the screaming red TRD center caps, so I ordered a set of bronze TOYOTA center caps that come with the same wheel on the HERITAGE Land Cruiser ... I painted the lettering silver.
As some of you know, my 2007 5.7L V8 already had 270,000 miles on it when I bought it, and I only have service records for the 31,000 that I have put on it since purchase. The engine has always made a good bit of light Diesel noise while it idled, but it's also idles smooth and it runs great.
The noise seemed to be associated to the timing chain and it's tensioners, so I tried a product called 505 CRO. It's an oil system cleaner that is supposed to clean carbon build-up out of the engine. The oil in the engine looked like Honey before I added the treatment this morning, and it was black as coal when I changed the oil and filter 20 minutes later.
Initial observation: The engine idles much quieter after using this product... I'll change the oil & filter again in 4,000 miles and post a follow up at that time.
Yep, carbon build up leads to preignition of fuel. GM had published TSB on how to burn it off by running WOT for a bit and quickly do a engine slow down , a few times. Idea is to heat up the carbon and then use sudden vacuum to knock it loose.