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  1. RaysnCayne

    1987 R10: TH400 to 200-4R swap (mostly wiring??)

    While the OG 305 TBI/TH400/3.08 10 bolt in my 87 R10 does okay buzzing down the highway between 71-74mph at 2800rpm, I'm just not enjoying that kind of a buzz for hours on end when I drive long distances. So I'd like to put in an OD trans. I have a decent, used 200-4R I'd like to put behind the...
  2. RaysnCayne

    Fuel spitting out spark plug hole?!?

    Hey y'all, I was doing a compression check on my 87 305 TBI engine this evening and was getting fuel spitting out of the #8 spark plug hole while spinning the engine over to check pressures on the other cylinders. Any idea why that'd be happening?? All the other cylinders were bone dry while I...
  3. RaysnCayne

    Should my TBI's fuel pressure act like this?

    Hi all. I've got a mostly-original TBI system atop the mostly-original 305 in my '87 SWB. It seems to be working fairly decent other than I feel it should be starting a bit quicker than it does (takes about 3ish seconds of cranking to light off when cold 2ish when warm) and should definitely be...
  4. RaysnCayne

    A/C only works when driving!?

    Hey all, Just got my '87 305 TBI with factory A/C (pretty sure it's had 134a put it in at some point) on the road last fall after a long rebuild. The A/C worked good when I bought the truck in late 2020. I kept the system fully intact during the next few years as I fixed up the truck. I've...
  5. RaysnCayne

    TH400 speedo driven gear issues

    Hey y'all, I'm dealing with a TH400 for the first time in my personal gearhead journey and am having issues trying to adjust the speedometer driven gear to get the right value on the speedo gauge. I swapped out the original 40-tooth gear for a 36 and thought it odd that the new driven gear...
  6. RaysnCayne

    Another "Chevy Lean" conundrum

    Hey all, When I first bought my very tired 87 SWB, it had a 1" lean to the left (lower on the passenger side) with the stock suspension/stock height all the way around. I wasn't too worried about that because I was sure it'd sit right after I put all new 1" lower springs, 2.5" lower spindles...
  7. RaysnCayne

    Pinion angle for lowered SWB Square?

    Hey guys, I feel like I see a lot of talk and info about pinion angles for lifted rigs, but precious little for lowered ones. My SWB '87 R10 (currently undergoing a mild "hot rodding" makeover with a freshly-installed 3.5"/4.5" drop) is up on stands with full weight on it. I'd like to see if...
  8. RaysnCayne

    TH400 (2WD): New tail shaft bushings are too tight. Why??

    What am I doing wrong guys?!? I'm simply trying to replace what I believe to be a worn-out bushing in the tail shaft of my 87 TH400 (305/10 bolt rear) and after two tries, I still can't get the yoke to go in after pressing the new bushing in. In my first attempt I used the expensive...

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