Square body drive shaft Unlike the later K1500 chassis with uses an unsprung IFS front drive, the ’73-’87 squarebody chassis uses a leaf spring-mounted solid axle in the front. Feb 6, 2020 · I replaced the front driveshaft U-joints (3, all the same) in my '75 K25 a few months ago and I just went to RockAuto and picked a set from the Heavy Duty category. 8"). Long shaft th350's are 12 inch and very rare would be 3 inches longer than the 700r4. 66" long. I did not have to do anything with my drive shafts. Dec 5, 2024 · Took it to the shop, found out the drive shaft is too short. I needed a 60. thought about doing this actually. the angle is too steep for a 2 ujoint driveshaft anyways. Custom length might be the only option, but there’s enough of the swaps for multiple companies to offer the slip yoke with the counter birentimclear the o ring lip that I wondered if there was a known length and maybe anvehicle that came with a one piece drive that would work. My front shaft was rebuilt with a different "H"-yoke in the cv, and I have had no clearance problems and my tranny/transfer case are in the same spot as they were stock. 00 to lengthen the rear. Do make sure you have the correct length driveshaft. I know I can make one custom or have one made but it would be nice if I could go rob one off an old junker or something. Mid shaft th350 which is 9 inches is almost exactly the same length at the 700r4. There is a 6 inch slip yoke in between the front and rear portions of the drive shaft. What would be the easiest way to go. Well mine is to short b/c the th350 is shorter than the 4l60E. My 1985 LWB 2WD had a one-piece shaft factory, was roughly 69-1/2" from center of u-joint to u-joint. 5" shaft. Jan 24, 2019 · It seriously needed fixed, but wasn't my problem. I assumed the drive shafts would be different, but it turned out they were the same length and I was able to use the old ones. If you install a shaft with too little travel and hit a bump that causes it to bottom out, you will instantly destroy your transfer Dec 23, 2012 · I currently have a short shaft the 6" housing. 4x4): Use CV drive shafts. 32 spline: (1973-79) This is the preferred shaft, as it is the strongest. Dec 14, 2014 · Joined Jun 1, 2013 Posts 175 Reaction score 6 Location Portland, oregon First Name chris Truck Year 1986 Truck Model k10 Engine Size 350 Apr 15, 2016 · Joined Apr 15, 2016 Posts 988 Reaction score 630 Location Catawba First Name William Truck Year 1973, 1985, 1986 Truck Model C10, C30 Engine Size 5. I still need to get a driveshaft modified for it. And yes it’s the one piece driveshaft I’m looking for. 1990 front shaft is 29. I would just drive it off from the front side if it wasn't for that cup on the drive shaft in the way. . May 11, 2011 · My stock shaft was about 56" long, 3" in diameter, . Just unbolt the bolt on yoke, slide it out and now you're ready for the slip yoke. Used with 4L80E transmission; 32 spline. What are the torque specs for 1) the rear drive shaft, U-joint to differential bolts (two 2 bolt retainers) 2) the front drive shaft, four bolts to transfer case Thanks. Feb 3, 2015 · 4L80E/241c rear shaft is 48. It was perfectly possible to re-tube my shaft, but using the stock diameter and wall thickness, the shaft would only be good to about 5800 rpm. When I LS swapped I had one custom made from Driveshaft Specialists in Texas, their requested measurement method was from tailshaft to face of pinion yoke and was 74-3/4". Transmission had some work done to it a little bit ago, but what I was wondering was if I installed a 2/4 inch lowering kit from bell tech if it would let the yoke sit properly. My question is Mar 1, 2018 · Joined Mar 1, 2018 Posts 16,422 Reaction score 55,480 Location SE Texas First Name Doug Truck Year 1982, 1984 Truck Model 1500 shortbed, 1500 longbed Engine Size Nov 6, 2005 · When I did my 8 inch lift, I had to get 2 shafts. One and done. Aug 29, 2010 · Joined Aug 29, 2010 Posts 47,153 Reaction score 9,378 Location OKC, OK First Name HotRod Truck Year 85 K20 LWB Truck Model Silverado Engine Size 454 - Turbo 400 - 3. Dec 5, 2019 · - For vehicles with longer travel suspension but short drive shafts (i. But I also have a 2 piece driveshaft from an 04' 6. I've done an LS/4L80E swap in my 87' 2wd long box. Found several recommendations to use non-greasable, and they fit and worked well. Dec 9, 2013 · Short shaft th350 is a 6 inch tailshaft and is 3 inches shorter than the 700r4. Aug 17, 2023 · I ran a 4" block in the rear. Jun 26, 2016 · Just measured my own (stock height 83 SWB K10, 700R4, NP-208 with 3/4 ton SF 9 1/2" ring gear 14 bolt rear). . To have a drive shaft cut down is 100 of i have a drive shaft already. 5 tsl's 4. I checked out youtube. That is just the price you have to pay. These came behind Turbo 400 trannies. Apr 25, 2024 · The chief difference in C and K series squarebody trucks is the front drive axle. Not much there for May 21, 2018 · It’s the short shaft bolt on style yoke transmission. I thought about it last night while looking at the driveline in the blazer. I'm looking at getting a one piece drive shaft for the truck. 73 Chevy Front Drive Shaft Front shaft for Chevy trucks with a stock solid front axle, non-IFS. 27 spline. I can say 30 years ago I helped a friend lift his '76 K20. sm465, np205, reg cab, long box. Jun 29, 2017 · Hi all I know this is a fairly simple project, but was still hoping to get some tips on how to get the pressed on carrier bearing off the driveshaft. I'm going to have a CV drive shaft built next week. This includes most Chevy Suburban, Chevy Blazer, GMC Jan 6, 2015 · Yes, You can indeed use the Slip yoke on the the threaded bolt on output shaft. 5's (32. The front drive shaft was flopping around like a fish. 99" 1990 (which were all T400/241c as I recall) rear shaft is 58. I have the double cardon on my front driveshaft, and just put on a transfer case lowering kit. May 13, 2009 · 78 K30 8" lift front driveshaft angle cures? Let's see 'em! 78 K20 swapped in dodge 60, 8" springs, 38. He had a NP-203 transfer case and with a 4" lift he didn't need to lengthen either drive shaft. That '79 truck was the best riding 4WD Square Body I've had. 75" 1991 front shaft is 31. With any OD transmission, it is entirely possible for any small-block to exceed that speed. This shaft will fit nearly any GM or Chevy application which uses a factory style flat flange on the transfer case and a factory size 1310 series u-joint on the front axle. I called them again and they needed some measurements to give me a quote on the 1 piece shaft. 50x16. anyone know of a longer aluminium drive shaft that will be like the one i have since mine is a swb it is to short to have cut down. That got me nowhere. Nov 2, 2020 · The U Joint at the diff is a 1310 to 1330 adapter (Spicer part # 5-134X) and there is a double cardan at the transfer case that uses two 1350 U Joints (Spicer Part # 5-1350X). After adding the 9 1/2" rear end and when fully loaded that drive shaft is dangerously close to ramming into the NP-208. e. $150. Here's how I fixed it. Your drive shaft may be short enough for a one-piece, but the GV unit is designed for only +/- 5/8" yoke slip. 0/4L80E. front driveshaft is just a fuzz above binding just sitting there. Tires were 33x12. To your point: the top shaft is almost collapsed. Not even sure which brand I picked. Nov 6, 2024 · I have a 1986 K-10 short bed (4. So I need a lwb drive shaft that will go to a 6in short tail shaft tranny. $350 to lengthen and modify front cv. The 700r4 comes in 2 lengths but only transmissions out of vettes are different. There's a ujoint up front that connects the drive shaft to the front differential. A local auto machine shop gave me great prices on shortening the 2 piece, adding new u-joints and center bearing. Sep 9, 2023 · DRIVESHAFTS, Everything You Need To Know to Remove & Install, For Your Project - Square Body Chevy Build C10, GMC, Silverado, Blazer, GMCAWESOME HATS & T-SHI. Nov 13, 2014 · Here is a little info I learned going from a 700r4 with np208 transfer case to TH400 with np208 transfer case. 10's. The original driveshaft is a 2 piece. Make sure you also grease the slip joint in the front driveshaft. Aug 29, 2010 · 27 spline: (1971-79) The units supplied with a T350 automatic have a 27 spline female input shaft. 083 wall mild steel. Bolt Pattern: Is an asymmetrical pattern unique to the 203. Sep 29, 2021 · Go to a reputable driveshaft shop and have a new one with new parts made. Apr 12, 2023 · Joined Apr 12, 2023 Posts 16 Reaction score 7 Location Shelton, WA First Name Brent Truck Year 1979 Truck Model K20 Engine Size 350 Jun 5, 2024 · If you want Chevy Square body C10 LS swaps explained, continue to read on! Squarebody LS Swap Considerations This article focuses on how to LS swap a C10 built by GMC or Chevrolet in ½-ton truck and SUV configurations from 1973 through 1987, but even this can be a bit confusing. 3L V6). 3 LS, 350, 454 Oct 17, 2012 · Typically it will be suggested to run a CV joint on the rear driveline to reduce drive line vibration from the two varied drive line angles (Upper transfer case drive line angle will have a substantial angle when compared to lower axle pinion angle to drive line 6 degrees +/- from direct alignment). I paid $800 for all new HD shafts ( front and rear ) with 1350 spicers CV's. 58" long. Yoke is not completely setting. You can use the threaded bolt on output shaft for both ways, but the non threaded output shaft you can only use for slip yoke. Oct 2, 2016 · Hey guys, I thought this would be the best place to post this question. Jul 9, 2019 · I know the drive shaft won't work for it but I'm wondering if they even made a drive shaft with this configuration and length in a stock vehicle. I have a 2 piece currently. Put her up on stands, ran in 4WD, and the problem was obvious. The stock shaft is right at 40 1/2" center-to-center on the u-joints. Step one is removing the front drive shaft. tyj ztctgsj odiqyx lmrri srnec pqinvm drflotzuw yxstyfa htv aueh bbm vfxaidy shcx kdlbo djeipbbc