So ivw been piecing together parts to dually swap my 75 gmc k15, I have a dana 70HD rear to put in, as well as some 8 lug hubs from a 1989 V2500 suburban, I know im running arrowcraft adapters up front, however just for screwing around, I found out that both the 8 lug front hubs, along with a 1997 14 bolt ff are a 4.6" hub bore, whereas the fana 70 is a 4.56, I was thinking all GM 8 lugs until 2001 or 2 were the 8x6.5? I will probably make a special note witharrowcraft when i go to order spacers but it got me curious PFA of local range cat that likes squarebodys

Got some ORD shackle flips and some b52’s for a not so square project coming up! It’s all going to be square body parts underneath so that’s what matters 😂. Starting off with a 1986 2wd 1 ton frame shackle flip, 64 inch springs and a 14 bolt in the back, 52 inch springs up front with a Dana 60. Probably will be a sbc 350 to start with but will end up with a LS eventually and a th400 and a np203/205 behind that. On top of all that a 1970 Chevy pickup body.

Just got my k15 back from the shop to fix the gear oil leak from both boxes, a few new shift forks and a input shaft sleeve later its much better and a good bit tighter, unfortunately its still having its weird 4th gear thunk. Im curious if anyone might have an idea what it could be? Transmission shop says they couldn't find anything to be causing it. It sounds like something is smacking against the case itself, you can hear it coming through the shifters. Some days its a little deeper, other its a bit higher pitched

Here's my current squarebody project; 87 V10 that started life as a 305/auto, currently a carbed 350/Sm465. It's on a 6" Superlift all spring lift, with 35/12.5r15 Yokohama Geolandar 003 tires. Plans this coming season are to build out the Dana 60 front axle and 11.5AAM rear axle that I have for it and get those swapped in, along with the 385 stroker I'm currently putting together and the 1st gen NV4500 I have waiting as well.