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  1. Overland Suburban

    2.5 Rockwells is anybody running these

    Also forgot to add that I won't be even close to as tall as your project. My fenderwells will be cut bigly and I will only lift as little as is needed to fit things underneath. I'm planning to set up suspension mostly for downtravel
  2. Overland Suburban

    2.5 Rockwells is anybody running these

    Vbb199, thanks for all that info it will most certainly come in very useful! I do fully understand the torque that 54" tires with that type of running gear will generate. I'm planning DIY hydro assist steering so will probably send you a PM when I'm getting started. My plan is mostly rounding up...
  3. Overland Suburban

    2.5 Rockwells is anybody running these

    I've taken a big turn in my build and have decided to make a snow wheeler out of my 89 suburban! My plan is 2.5 rockwells with Detroit lockers on 54 mickey Thompson's. There are a few things I would like to get some advice on and that is what to run for transfercases as I want to have as low of...
  4. Overland Suburban

    How to... lift Suburban 4x4

    I've got 36" tires with 4:56 gears and 4th gear overdrive is pretty tall. I Definately would not want 38" with 4:11 gears unless I was useing a SM465 4 speed manual or 3 speed automatic. My 4" lift is perfect for 36" tires. I'm going to go with 40s but will cut my fenders rather than lift over...
  5. Overland Suburban

    I need gaskets and seal kit for A 10 spline SM465 NP 205

    ORD had everything I needed.....Thanks Now just waiting on the seal kits and than my 4 speed swap will be under way on the suburban
  6. Overland Suburban

    I need gaskets and seal kit for A 10 spline SM465 NP 205

    I've been to every parts store in my home down and knowbody carries a kit. Only a few seals here and there sold individually and not a single gasket! Must be Covid 19 or a government conspiracy....
  7. Overland Suburban

    I need gaskets and seal kit for A 10 spline SM465 NP 205

    Can anyone help me out with where I can order a quality gaskets and seals kit for my 10 spline SM465 NP205 that I'm getting ready to swap into my suburban? Thanks in advance
  8. Overland Suburban

    Noob with a 1989 Chevrolet R3500 454 with performance upgrades

    Welcome and nice looking truck! Sure would be nice to know cam specs, what pistons did he use, were the heads ported, did he up the pressure on the tbi, has the throttle body been modified, is the fuel pump stock or modified, has it been rechipped??????? It didn't perform in what way? No...
  9. Overland Suburban

    Warn hydraulic winch?

    Just a thought but the guys I wheel with use chainsaw winches and I'm impressed! It's nice when you want to pull straight sideways when you can hook to the side of your vehicle. Carrying a chainsaw is a must anyways if your wheeling in timbered country and a chainsaw winch is light Tracy
  10. Overland Suburban

    Gotta love TBI

    I've been tossing around 100 different ideas on what to do engine wise in my 89 suburban! The 350 TBI that's in it runs mint and I think you talked me into keeping it TBI. Its not a race car it's a camping, exploring, hunting mobile how much power does a person really need. The 456 gears I have...
  11. Overland Suburban

    TBI rebuild completed!

    Yep there way simpler than a Carb! When I rebuilt mine it ran some better but didn't come to life until I changed the fuel pump.......if there is such a thing as a 350 TBI coming to life Lol
  12. Overland Suburban

    How to... lift Suburban 4x4

    Yep it might be a little more work but well worth it IMO! Not only is it stronger with less axle wrap BS going on but the way it drops the rear of the spring it helps keep a more correct pinion angle. My Burb had 4" blocks in the rear when I bought it and I switched it over to 4" ord's Tracy
  13. Overland Suburban

    No way this is right?

    Scoots, the OP has a TBI engine that has been changed over to a carb that apparently won't run. The TBI distributor is computer ran and wont work with a carberator. If your engine is TBI and hasn't been swapped you want to keep the distributer you have
  14. Overland Suburban

    No way this is right?

    Does it run? Looks like someone tried a swap and gave up on it? Hopefully the tbi distributor has been swapped out Tracy
  15. Overland Suburban

    Cummins 6BT swap in a V2500 Suburban?

    A 12 valve Cummins will get 20 mpg in a suburban
  16. Overland Suburban

    Cummins 6BT swap in a V2500 Suburban?

    Hey Mitch I'm getting ready to do the same thing to my 89 Suburban. This is what I've learned so far. Your suburban likely has a 14 bolt rear and that will work fine but the front axle if stock is a 10 bolt and that WON'T hold up to a 1200 lb Cummins. A Dana 60 is a direct bolt in swap and...
  17. Overland Suburban

    Advice on freshening up a 350 tbi

    Lol, no worries friend! This forum is pretty big so sometimes you have to message fellas where you find them. Your welcome to step into my thread anytime Tracy:cheers:
  18. Overland Suburban

    HEI help

  19. Overland Suburban

    HEI help

    It should work but only if you drive in reverse! :birgits_tiredcoffeeJK Hopefully someone will be along soon who can help Tracy
  20. Overland Suburban

    Advice on freshening up a 350 tbi

    That sounds pretty cool a 4 barrel tbi unit. I had read that some people did some serious modifications and got impressive dyno numbers. If there was a mod system that was plug and play available I'd be all over the tbi thing. Or if there was a shop around that did tbi mod work I'd build an...
  21. Overland Suburban

    Advice on freshening up a 350 tbi

    I would never go vortec heads and stay tbi. The tbi unit is very limiting from what I understand and it's a mismatched setup that seriously limits the vortec head. With a carb and vortec heads I can go 300 hp, 400 hp, 500 hp whatever I want to do. I plan on spending a bunch of time in the...
  22. Overland Suburban

    Can't believe this gas mileage

    Sweet! I had a 1974 4x4 with a 350. I got 17 mpg with it tuned up. Now I'm trying to figure out how I'm going to get a Suburban to get some mileage. Going to build a mild tuned up 350 first. Than going to go about building a 383 stroker. My guess is torque will win out in the economy department...
  23. Overland Suburban

    Finally finished My 406

    Thanks! Is there a thread where you cover the components you put in that sweet looking engine? I had a friend who is an engine builder who built a 400 for his 68 long box chevy 3/4 ton with 36" tires. Believe it or not we averaged 17 mpg on road trips. He used the edelbrock performer camshaft...
  24. Overland Suburban

    Finally finished My 406

    Looks good! Is a 406 a 400 bored 30 over? I know probably a stupid question but I'm just learning all this chevy stuff Tracy
  25. Overland Suburban

    Advice on freshening up a 350 tbi

    A few more questions 1 Since I'm going carberated what route would you guys go for fuel delivery keeping in mind reliability? Mechanical pump or pressure regulator with intank TBI pump. Either way I'm planning a return line to the tank to make sure I keep vapor lock at bay 2. With stock Summit...

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