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  1. M

    Engine Build - ran into a hang up with TBI intake, need help

    I have been building a 355 for my truck for a few weeks. Trying to do it right and use good parts and not get too crazy with compression or wild cams. Using a 12-388-4 Comp Cam and 9:1 compression. I use the truck for towing and want to run 87 octane. I ran into a issue. I have the heads...
  2. M

    Dynamic EFI - Anyone using it?

    Looking at getting the Dynamic EFI ECM for my 87' with TBI so I can upgrade to vortec heads and a little bigger cam. Anyone using the Dynamic EFI system? The website is packed with info but honestly I was lost in reading it, left me more confused. Anyone using this system and have any...
  3. M

    TBI Engine Overhaul - Need input

    I spoke with a local engine rebuilder here yesterday and we discussed rebuilding my tired old TBI 350 engine. He has some ideas which I am not sure would work, wanted to run them by you all. First off, says for a little more power we could put in flat top pistons and hes guessing...
  4. M

    New Exhaust Question

    Im going to order a new Dynomax dual exhaust system for my truck - going with a manifold-back dual system. One question - would it be a good idea to get some new exhaust dounuts for pipes ahead of time? Should I just assume i'll need to replace them?
  5. M

    Master Cylinder - K10 to K20 conversion

    Hey there folks. Couple years ago I put 3/4 ton axles under my K10. When I did that I reused the 1/2 ton brake calipers on the front. In a few weeks I'm going to go ahead and replace those with the 3/4 ton calipers and put new brake hoses on the front as well. My question - I know the 3/4...
  6. M

    Do the 56" springs ride better than the 52" leaf springs?

    Hi All, I see from time to time that people are saying the 56" leafs ride better than the 52" leaf spring packs. I see the reasoning, a longer leaf so it can flex more. But my thoughts are that a 56" spring would be a lot stiffer, since they are rated for much higher loads. Any thoughts...
  7. M

    Need new radiator, what to get for now and future

    I have a radiator that works fine, but the overflow port is busted off. It leaks out a little coolant now and also made the overflow useless. I've been driving it this way for a while, but its time to replace. Looks like I can get a replacement radiator from advance or simliar stores. The...
  8. M

    Mufflers - need input/advice

    I'm putting a dual exhaust system on soon, going with a manifold back system with pipes behind the wheels (not out the back). I'm looking for a good muffler, I want something with a little more sound than a stock quiet muffler, but I dont want something that will be droning and driving me...
  9. M

    Improving ride on a 4x4

    Hey All, I'm always looking to improve my truck. I drive it to work and back 1-2 times a week, which is around 50 miles round trip each time. I notice that these trucks do not ride nearly as good as the newer trucks do, I assume its mostly due to the strait front axle for the 4x4, and just...
  10. M

    what is the easiest way to swap an LS motor into a K10?

    I have an 1987 K10 with TBI 350 which is pretty worn out. I was planning on swapping in a crate 350, but I read so much good about the LS swap. I have read a lot about the swap, but I get really lost in all the wiring. I dont know much about wiring a vechicle and dont want to lose my...
  11. M

    Do these trucks just vibrate?

    I have been on a quest for my 4x4 to ride smoothly. I swear I take one step forward and two steps back. I got the tires balance twice, fixed the driveshaft vibration, new brakes, fresh grease and oil in the axles. Still has a small driveline vibration in the rear half of the truck...
  12. M

    TBI and cams

    This winter I am going to replace my motor with a GM TBI Crate motor as its worn out. I would like to do replace the intake with the Edelbrock TBI performer. I am leaning toward using the stock exhaust manifolds over going to headers as well. Also I would like to put in a different...
  13. M

    FS: Holley TBI 670cfm

    Hey all, I grabbed a Holley 670cfm TBI a few months ago but I have begun to realize that I'll probably never use it. I never installed it or did really anything with it at all, its just sitting on the shelf. These things are really expensive new, around $450-500. I am selling for $150...
  14. M

    Can I drive truck up to 70mph safely with just the front driveshaft installed?

    Like the title says - I am tying to find a driveline vibration in my truck - its driving me nuts. Here is what I did so far: - balanced all four wheels - New U-joints - Removed front driveshaft and just drove in 2H None of this helped - around 68-73mph I get a funky vibration - it...
  15. M

    Bad Vibration above 65 mph - u-joint?

    Hi All. I've been driving my truck since the axle swap and I am starting to notice a bad vibration on the interstate around 65-70 mph. Its on a really smooth road which was just repaved about a month ago, so I don't believe its being caused by the road. It "feels" like a tire out of balance...
  16. M

    AghhhhH!! I screwed up the headliner install - need tips

    Well I tried re-doing my headliner tonight. I had cleaned up the foam and was ready to install the fabric. I laid it out and folded about 6 inches back to start gluing. I sprayed the adhesive and then waited a few min. Wouldnt you know I barely got anywhere and the freaking fabric stuck...
  17. M

    Sound Deadening in Cab

    Hello all. In the future I would like to try to quiet my cab down. Has anyone used sound deadening products here? Any tips or ideas? I've been looking at FatMat mostly. I want to make the cab as quiet as possible. There are a lot of different products out there it seems and it...
  18. M

    steering a little loose - what should I suspect?

    My steering is a little loose and always has been. If you hold the wheel strait, the truck will wander just a little from side to side randomly. My Dad believes it needs a new steering box. I wonder if there could be something else, like a bad rag joint. FYI = ball joints are brand new...
  19. M

    Need Help! Axle Swap and Front Caliper brake lines

    I worked this morning and got my 10 bolt 3/4 ton front axle installed (3/4 axle swap in progress). I went to hook up the brake lines to the capliers - they don't as their are two tabs on my 1/2 brake line that won't fit into the 3/4 caliper. These are the 8600lb capilers, fyi. I...
  20. M

    My 3/4 Ton Axle Swap Progress with pictures

    Hey All, I have been posting many questions over the past few weeks regarding swapping in a 14 bolt rear end into my 87' K10. I figured I would post up some pictures of my progress as I enjoy reading others threads on projects. I don't have any pictures of the axles when I got them, but...
  21. M

    Which TBI head casting do I have?

    I have an 87' K10 with the TBI 350. I have found six possible choices, but I believe it is one of the two following numbers: -14102191 -14102193 Also, when look at the GM crate motors, there are two for the TBI 350. One is 190 hp and the other is 210 hp. They have different...
  22. M

    What is the difference between k10/k20 E-brake cables?

    Well, as I change over to 3/4 ton axles, I find I am replacing A LOT of stuff! Anyways, E-brake cables are next. I was going to reuse mine from the k10, but they are pretty much junk (rusted stuck). E-brake has never worked as the cables don't slide anymore. on LMC's website they list...
  23. M

    14 bolt SF Swap - will the driveshaft fit?

    Hey All, I am knee-deep in my 14 bolt swap, almost have the new 10-bolt front rebuilt and starting on the rear end today. A major question has come up and I cannot find a strait answer. I know I need the trick u-joint for the driveshaft, but what about the driveshaft length? Does it...
  24. M

    found set of wheels, confused about backspace/offset again. Need help

    I found a set of wheels on CL. The post says that they are 16x8 wheels and have a 3mm+ offset, but says that they have 4.625" backspacing. Here is the quote below: "plus 3 mm offset, 4.625" backspace." From what I thought I knew, the offset was from the middle of the wheel. So 3mm...
  25. M

    Tires - 245/75/16 or 265/75/16?

    Hey everyone, Now I am looking at Tires. Probably going with either BFG A/Ts or Rugged Terrains. Looking at either 245/75/16 or 265/75/16's. Anyone have input on either size? My understandig is that the 245's are around 31" and the 265's are around 32" tall. Any picutres of either?

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