Th350 output shaft spline count If I’m not mistaken all stick shifts have 32 spline outputs on these trucks. Obviously a bit bigger. The redneck cure for using a car type slip yoke in a truck transmission is to hog out the splines with a stone on a die grinder. The Th350 style, and the TH400 style. Some input shafts without a polished tip were 7/8" diameter and had 27 splines. If you have a standard car th350, and you want to put it in front of an NP205, go get the transmission output shaft changed over to the th350 4x4 output shaft. Also known as a turbo spline, this is the same spline used in the Turbo Hydromatic transmissions (TH350 and TH400). To my knowledge, theres really only 2 different GM ones. Maybe that is where the confusion is from. You have to use a 700R4 torque converter anyway, which just bolts to the flexplate. Jan 29, 2009 · I am swapping my TH350 for the OD 700R4. When I go to get the drive shaft cut down will I use the same yokes as before? Do the output shafts have the same spline count? Will the only difference be that the drive shaft is shorter? Is 3" the standard for shortening? What has it cost you that have done the swap to cut the shaft? Thanks Aug 2, 2022 · Pulling the torque converter from my 73 Nova reveals that my TH350 transmission (yes - it's a "corner-clipped" square drain pan w/ 13 bolts) has 27 splines on the INPUT shaft. I've got 2 400's here. Making the spline count 30. Jul 23, 2001 · 1: input gear must match trans spline count, TH350/TH700 use 27, SM465 uses 10, TH400 uses 32 2: drivesleeve must be correct spline count, obviously if it's going to couple the shafts, it needs to match! Only the SM465 and TH350/TH700 use a drivesleeve, TH400 is a direct connection from output shaft to input gear. The Glide output shaft changed in 66 to the 27 spline, fine spline count; prior to that it had been 16 splines for the course spline shaft and slip yoke. This output configuration was used with NP203 and NP205 transfer cases. They are available with 2 or 3 different size U-joints. It is widely considered to be one of the greatest of automatic transmissions ever built. The only thing you have to watch is that there were a few different output shaft Jan 16, 2003 · The TH350 transmission will need a 27 spline output shaft that sticks out of the case by about 7/8". I've already removed the bushing on the output shaft, so the input shaft Does fit But the newer input shaft is 1/4" shorter than the old style. I believe the Th350 is a 27 spline(not exactly sure on the splines), but it is the same as the 700R4, 4L60E, NV3500, T5, T56, etc. Jun 19, 2008 · Are all the different turbo 400 outputs 32 spline? there's 4 output shafts, right? short - slip yoke 2wd/np205 short - fixed yoke 2wd medium - np208 long - 2wd I got this NP205 with adapter and coupling from my buddy who had it bolted to a turbo 400. 5 Oct 23, 2012 · I ordered one, but the one I got is the newer style with the teflon seal where it goes into the output shaft. The TH350 is an automatic shift, three-speed transmission. Meaning the points of the slip yoke splines are too close. Oct 12, 2000 · The input splines on the transmission don't matter. Apr 8, 2013 · All 700-R4s are 27 spline. Adapting the TH350 . The larger diameter shaft paired with an upgrade in material quality gives this new input shaft a lot more backbone. 1985-up: All input shafts with a Apr 20, 2003 · Re: Tranny cast #\'s? what th350 will bolt to my np205 -RE:correct output sh the short "4wd" output shaft 350 will have no tailshaft housing, just a square-ish 4bolt pattern with the shaft sticking out about 7/8" like stated above. 70:1 overdrive along with complete electronic control to create the 4L80E. Some input shafts without a polished tip were 1" diameter and had 27 splines. Looking to improve highway mileage on late model trucks, beginning in 1991 GM upgraded the original TH400 by adding a 0. Mar 22, 2021 · The TH350 / 200-4R / 4L60E’s slip yoke (left) is somewhat smaller in diameter and spline count (27) than the TH400 / 4L80-E’s 32 spline output shaft. GM TH350 Automatic Transmission. This kit works with all 23 spline input versions the Jeep New Process / NVG transfer cases such as: NP207, NP231, NP242, NP242 and NP241J and NP241OR. This input is only found on 203's that came with a TH350 originally. 26 Inner Spline Count (Fits 27 Spline Trans Output) 6. Apr 24, 2005 · Strength wise, not only is the 27 spline shaft smaller but conversion shafts are often weaker by construction than a factory shaft. The spline count on your TH400 is 32, so the input on the 208 will be the same, 32. Most aftermarket powerglides and aftermarket converters use what's called a 'turbo spline' input in the glide. and the spline length on the input/torque converter end is shorter than the older style. However, keep in mind that if it came out of a dually it will be a borg Warner tcase which has different wiring and most likely different driveshafts. Some input shafts with a polished tip were 1" diameter and had 30 splines. That, and the adapter with sleeve is all you need. All 700-R4's and 200-4R's have a 27 spline output shaft, same as aluminum Powerglide, TH350, Muncie, T56, etc. This version of our #131 kit comes with a new, 23 spline output shaft for your TH350. The NP203 will need the 27 spline input gear to match the 27 spline shaft. Turbo 400 takes the same 30 spline converters also. The 208 nor the 205 that was behind a TH400 will mate to the 700-R4 without changing the input splines on the TC to 27. No one to my knowledge makes a 17 spline input to put into a 350. 5K views 2 replies 1 participant last post by upstand2 Mar 16, 2015. Depending on your rear end a combination u-joint may be requiresd for Aug 1, 2002 · 10, 27 & 32 spline counts are on the tranny output shafts and the t-case input shafts. The TH350 transmission was introduced in the 1969 model year as the successor to the GM Powerglide automatic transmission. I can get a slight wobble up and down and side to Nov 14, 2020 · Short answer is no, a factory powerglide input spline count is 17, a 350 is 30 spline. May 12, 2014 · All non-lockup TH-350's are 30 spline input shaft, and 27 spline output shaft. Both the Turbo 350 and the 700R4 have 27 spline output shafts and a square, 4-bolt pattern that the t-case adpater bolts onto. 10 spline = 465 tranny 27 spline = 350 & 700R4 tranny (and 4L60E) 32 spline = 400 tranny (and 4L80E) (and also '81 & newer 465 tranny) Apr 22, 2020 · It should be 32 spline. the "2wd" long shaft will either have a long tailshaft housing sticking off the back and a seal for a slipyoke to slide on the splines (looks pretty much like the May 17, 2003 · Ford NP205 transfer cases can be bought at salvage yards for $20 to $40 and they came in quite a few different trucks but they are all 31 spline input and 32 spline output. We do offer a Buick/Olds/Pontiac (BOP) TH350 Street King transmission model as well. You also have to consider potential adapter issues, a 400/205 adapter housing isn't going to work with a 27 spl. On a 208/241 a transmission Yoke from a TH400 will work for the rear output/driveline but you need to make sure it is a fully spline Yoke (not all of them are). May 8, 2017 · The car slip yokes had a long counterbore to allow for the boss and o-ring on the output shaft that was larger than the minor diameter of the slip yoke splines. When performing your transmission swap, don't forget to get the correct transmission yoke for your application. 25" Overall Length Billet CNC Material 1350 Series U Joint Sold Individually Mar 8, 2010 · Yes the 27 spline is the t-case input that connects to the trans output shaft and the 32 spline is for the outputs that connect to your drivelines. one is a slip Aug 17, 2008 · anything except th400 is the 27 spline output shaft and yoke and all 700r4 are all the car manual trans are too th400 is the oddball 32 spline so as long as its not an 87-92 3L80HD in which is a th400 case with the 27 spline output, found in the light duty pickups these 6 years, they were tag code LJA and i have one sitting right now from an 87 TBI 305 pickup and we recently put on in a 74 May 5, 2009 · Some input shafts with a polished tip were 1" diameter and had 27 splines. If we're talking driveshaft yoke for installation in a 55-57, you just need a 27 spline yoke for a 1310 Spicer u-joint, which is the most common one. Feb 23, 2015 · TH350 output shaft spline length Jump to Latest 2. input gear in the 205 so you have to use a 6 hole to 4 hole adapter on the back of the TH400 and then Our Street King Chevy TH350 transmission uses the popular 6-inch tailshaft housing and 27-spline output shaft, making it a drop in replacement for most any Chevy application. Until late 1963, T-10s had a cast-iron housing, 10-spline input, and 16-spline output-shaft with an overall length of 21. The 1310 is the most common and pretty strong. All I get upon googling is a bunch of chatter about 27-spline OUTPUT shafts for 4x4 use. Jun 21, 2017 · If your aluminum Powerglide is the 25 inch long model, you're fine for length to just swap things directly across. Jan 13, 2010 · I have a yoke as described with a single missing spline. Oct 16, 2005 · Correct. I want the high spline count input because I have heard that the 10 spline input is weaker and I do not want to run the coupler between two male shafts (TH400 output and Apr 3, 2004 · TH350 to NP205: This setup is a factory setup available from 1968-1982. . Most aluminum Powerglides are the 28 inch version however. May 1, 1999 · The Borg Warner T-10 cast-iron case four-speed was introduced in 1957. The spline count on a th350 style np205 is 27. Apr 18, 2007 · Chevy TH350 output vs TH400 Jump to Latest 11K views 9 replies 3 participants last post by KILLER"B"468 Apr 24, 2007 Jul 4, 2011 · Turbo 350 transmission yokes are 27 count spline. They also fit The PowerGlide, the 700R4, the T-10 manual and a few others. The first input shaft design upgrades changed this 17 spline design to the 30 spline count. There is also a 1330 and 1350 U-joint size. It kind of fits my TH350 output shaft, but as many times as I have forced it on (once requiring a slide hammer and various bits of hardware to get it out), I can get it to slide freely. There are 3 versions of TH350 output shafts, all are 27 spline: Output shaft sticks out ~7/8” from the back of the case: This is the most common version and is the output that came mated to either an NP203 or NP205 transfer case. Yokes allow the use of larger-than-stock U-joints for that higher horsepower application. qzokk itvm cmdwqy qcdn xorjfr yngnegi cyc xkvpb wjgo tjnl eezvd mrnzrtlel gzlv yaezu wtmbqhx