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  1. Logbed

    Where to mount TH700 manual lock-up switch?

    Hi, What kind of switches have you used and where have you mounted them for practical operation? Pictures?
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    Wheel/Tire Opinion

    Ended up with a set of General Grabber 31x10.50R15 tires on original GM PA06 optional 8x15 wheels. Very happy with the solid looks and buttery ride that makes potholes almost disappear.
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    Fender emblems without drilling holes?

    I was thinking about reinstalling the emblems but I would not like to drill the holes if that's avoidable. How is the emblem, is there good surface on the backside for adhesive material? Any experience on this?
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    '85 C10 Silverado stock wheel size

    Hi, I have read many people refer 8x15 as the stock wheel size. This table seems to show 6 inch width as the stock wheel. https://www.wheel-size.com/size/chevrolet/c10/1985/ The rally wheels of my truck are 6.5x15 and I have wondered if they are the originals?
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    Shopping parts in SoCal?

    I might be flying from Europe to travel around San Diego - Long Beach in May. If I wanted to buy a posi differential and gears as a souvenir;):p are there retailers that you would recommend with prices comparable to Jegs and Summit?
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    Outline white letter tires

    Googled a little. From Coker tire site: " The Goodyear GT Radial Customgard Flexten tire features extra wide 255/60R15 sizing, which was specific for 1978 and 1979 Corvette pace cars. The outlined white letters are authentic for the era, and the sizing is excellent for restored cars or...
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    Outline white letter tires

    Sorry I was not specific enough. I meant did we have outline white letter "OWL" tires like the Grabbers in the picture during the 80's? Or were all white lettr tires during the 80's with full white letters "RWL" like Cooper Cobras?
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    Outline white letter tires

    When did they come? Just wondering are they "period correct" for a mid-late 80's truck? I remember the white letters from my teen years but outline style I do not remeber.
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    Wheel/Tire Opinion

    I rechecked our local laws on tire sizes. Seems like now even 15% change in diameter is ok so that's not an issue. With that in mind the options would be: - 31x10,5x15 BF Goodrich All Terrain TA:s? - 255/70R15 Cooper Cobras? Two totally different styles. The pricetag recommends Cooper Cobras...
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    Wheel/Tire Opinion

    Same situation here, except I'm going to keep my 6,5x15 rally wheels. I currently have Bridgestone Dueller HTS 255/60R15 up front and 275/60R15 rear under my '85 normal height 2wd longbed (the red truck). I'm after some more rubber height and retro look. Right now I'm torn in between 255/70R15...
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    Wheel spacers or adapters w. 6.5x15 rally wheels & stock ride height?

    Hi, My '85 longbed is currently on 255/60r15 front, 275/60r15 rear tires on stock 6.5" in wheels. The plan is to get 255/70R15 white letter Cooper Cobras all around to gain some tire height and visual mass. I've also played with the idea of widening the rear track a bit and maybe just a little...
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    Gearing for performance TH700R4 + 3.73 ?

    I checked the diameter and used a gearing calculator. Your 3.73 El Camino gearing was indeed almost excactly the same as 4.10 with 255/70R15 tire size.
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    Gearing for performance TH700R4 + 3.73 ?

    Ordered an upgraded TH700-4r trans, will be installing it next month. Now thinking about the gearing... How big were your rear wheels in the El Camino? I was toying with a gearing calculator and noticed that if your tire size was anywhere near normal El Camino, my truck with 275/60R15 or...
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    28 or 30 Spline Information

    Same dilemma. '85 C10 silverado 305+Th350. Looks tell its 10 bolt 8.5, speed+rpm+math tells the ratio is 3.42, but is there any way of telling the spline count from outside? I can't be sure if it is the original axle.
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    Gearing for performance TH700R4 + 3.73 ?

    Thanks for the very good insights. The trans&gearing mod is not for free nowadays, but sounds like worth it. I might even go for the suggested 4.10 gears as there's always the option to go back a little in overall gearing by changing the tires to higher profiles (which In my eyes fit well to a...
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    Gearing for performance TH700R4 + 3.73 ?

    Not worried about the rear swinging, more like waiting for it, although like you said, I must be realistic with the power I have... Off topic: Actually, right now there's 6" of new snow outside and my daily driver, a TT Quattro 3.2 with studded snow tires, had the ESP turned off like I have it...
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    Gearing for performance TH700R4 + 3.73 ?

    How is it, if the quicker ratio, higher stall and lower 1st gear make the wheels spin, is it always going to be one wheel only unless I have a limited slip diff? And If I install limited slip kit, am I too modestly powered to spin both the wheels? (You wouldn't think a middle aged man has...
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    Gearing for performance TH700R4 + 3.73 ?

    Thanks, 4:10 made me think, I'd still have 10% longer 4th than my current 3rd, but the 1st would be 30% shorter!
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    Gearing for performance TH700R4 + 3.73 ?

    Which model World Product heads did you have? How big and around where in the powerband was the power improvement compared to stock heads? Asking out of interest, maybe something to do during the next winter? Right now my assumption is that I'd get more "0-60 performance" with drivetrain...
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    Gearing for performance TH700R4 + 3.73 ?

    Good point, 275/60R15. 28" tire height!
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    Gearing for performance TH700R4 + 3.73 ?

    Hi, I have an '85 longbed 2wd that has a well built 305 with the basic upgrades (Edelbrock 500 carb, performer intake, performer plus cam, HEI and 1.5in long headers). Being adjusted in a hub dyno it pulled 190hp/4600 and 250ftlbs/3100 (at the hubs). The engine also has low mileage and...
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    TH350 -> TH700-r4 swap crossmember repositioning?

    Hi, How is the length difference and crossmember reposition in inches? Among other things I'm trying to figure out if my exhaust can remain the same after repositioning the crossmember? Images attached.
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    Indoors (dust) cover for a longbed c10

    Hi, Sadly in couple of months its time to park the truck for a couple of winter months to save it from the de-icing salt on the roads. I figured I could get a cheap breathable cover to keep the public garage dust away. So far I found the one behind the link, I guess it should fit good enough...
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    Power estimate, mildly modded 305?

    Hi, I'm new here, cool info everywhere, thanks! I just installed 1,5in longtube Flowtech headers to my 1985 305+TH350 Fleetside. The engine is a 305 from a 1986 Caprice. The car has no smog equipment and in addition to long headers there's a free flowing 2 1/4 double exhaust, Edelbrock...
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    1984 K10 305 Headers

    I'll answer to my self if this helped someone else sometime? Passanger side goes easily from top down, only the oil dipstick is a minor hassle, needs not be removed. Driver side from bottom up, I had to remove cylinder 3. spark plug, nothing else. No lifting the car necessary. All in all quite...

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