Hi - I did a search of the H.A.M.B. and found a post by Brainangus that stated: "With full weight of car and engine setting on the suspension, insert the front universal joint yoke into the tailstock of the transmission---Push it in fully, then pull it back 3/4". the measurement from the center of this yoke (where the universal "spider" fits) to the same point on the yoke attached to the rearend will give the dimension required to build a new driveshaft." And I was wondering - Does the driveshaft need 3/4" play? Or is the plan that the new driveshaft will eat up some of that play? Is 3/4" standard for other makes, like Dodge or Ford? Thanks.
3/4 is a pretty standard rule of thumb. The rear end moves closer ro the tranny under load, so some play is necessary.
its called "wrap up" you have to have movement for and aft for drive line "wrap up" the suspension has to move at stop and accel , 3/4 is just about the right amt of movement , what is your driveline angle ? less than desired (1-2 degrees) will change the wrap efect . depending on what yoke and trans you have , this can be different , most have plenty of room , also if your yolk has a "bead" where the seal ran , you can move this some to run on fresh surface , also dont believe all the nay sayers that state "you must balance the shaft" ive done many with a hose clamp and washer moved to position while running on stands and changing position of said clamp ( seems micky mouse ) but it works and saves about $100 bucks . im running 0-1/16 angle with a self made shaft and 1" extra movement at yolk and its fine , ive done this many times , good luck mopar210
Yeah - what Comet said. I used Inland Empire Driveline http://www.iedls.com/home.html. The web site has a page with easy to follow measuring instructions. It came in just a few days and fit perfectly.
Very good advice...not all shops measure the same way. some go from cap to cap and some from the output shaft end to cap center..best to ask first.
I'll echo this advice, too. The last one I had made they told me to measure from the end of the tail HOUSING to one of the bolt holes on the rear end flange.
I use this have this for reference but every shop is diff so as stated before ask your drive shaft shop how they would like the measurements center to center is the best if you have your trans yoke Drive shafts but if its on paper and you both have a copy there is no misunderstanding And no I dont work for them just good info • Pinion/Transmission Yokes • Center Support Bearings New • Rebuild • Repair • Rebalancing <input name="recipient" value="tech@iedls.com" type="hidden"> <input name="redirect" value="https://s1.uia.net/iedls/success.html" type="hidden"> <input name="subject" value="IEDLS ONE PIECE Product order" type="hidden"> <input name="required" value="required-name,required-address,required-phone,email" type="hidden"> <table> <tbody><tr> <td class="header"> <input name="type" value="order" checked="checked" type="radio">Here is My Order <input name="type" value="quote" type="radio">Price Quote only at this time </td> </tr> </tbody></table> <table class="normal" width="730" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td colspan="5"> MEASURE FOR U-JOINT SIZE AT THIRD MEMBER YOKE</td> </tr> <tr> <td colspan="3"> </td> <td rowspan="10" width="100%"><center></center></td> <td> </td> </tr> <tr> <td nowrap="nowrap"><input name="yoke" value="3-7/32x1-1/16" type="checkbox"> </td> <td nowrap="nowrap">E = 3 - 7/32" </td> <td nowrap="nowrap">D = 1 - 1/16"</td> <td nowrap="nowrap">SOME CHRYSLER CORP.</td> </tr> <tr> <td nowrap="nowrap"><input name="yoke" value="3-7/32x1-1/8" type="checkbox"> </td> <td nowrap="nowrap">E = 3 - 7/32" </td> <td nowrap="nowrap">D = 1 - 1/8"</td> <td nowrap="nowrap"><input name="yoke" value="2-1/8" type="checkbox"> A = 2 - 1/8"</td> </tr> <tr> <td nowrap="nowrap"><input name="yoke" value="3-5/8x1-1/16" type="checkbox"> </td> <td nowrap="nowrap">E = 3 - 5/8" </td> <td nowrap="nowrap">D = 1 - 1/16"</td> <td nowrap="nowrap"><input name="yoke" value="2-5/8" type="checkbox"> A = 2 - 5/8"</td> </tr> <tr> <td nowrap="nowrap"><input name="yoke" value="3-5/8x1-1/8" type="checkbox"> </td> <td nowrap="nowrap">E = 3 - 5/8" </td> <td nowrap="nowrap">D = 1 - 1/8"</td> <td nowrap="nowrap">SOME GENERAL MOTORS.</td> </tr> <tr> <td nowrap="nowrap"><input name="yoke" value="3-5/8x1-3/16" type="checkbox"> </td> <td nowrap="nowrap">E = 3 - 5/8" </td> <td nowrap="nowrap">D = 1 - 3/16"</td> <td nowrap="nowrap"><input name="yoke" value="2-9/16" type="checkbox"> A = 2 - 9/16"</td> </tr> <tr> <td nowrap="nowrap"><input name="yoke" value="4-3/16x1-3/16" type="checkbox"> </td> <td nowrap="nowrap">E = 4 - 3/16" </td> <td nowrap="nowrap">D = 1 - 3/16"</td> <td nowrap="nowrap"> </td> </tr> <tr> <td nowrap="nowrap"><input name="yoke" value="4-3/16x1-3/8" type="checkbox"> </td> <td nowrap="nowrap">E = 4 - 3/16" </td> <td nowrap="nowrap">D = 1 - 3/8"</td> <td nowrap="nowrap"> </td> </tr> <tr> <td nowrap="nowrap"><input name="yoke" value="4-31/32x1-3/8" type="checkbox"> </td> <td nowrap="nowrap">E = 4 - 31/32" </td> <td nowrap="nowrap">D = 1 - 3/8"</td> <td nowrap="nowrap"> </td> </tr> <tr> <td colspan="2"> </td> <td> </td> </tr></tbody></table> <table class="header" width="730" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td valign="top"> </td> <td>“X” MEASUREMENT IS FROM THE TIP OF THE TRANSMISSION OUTPUT SHAFT TO THE CENTERLINE OF U-JOINT AT THE THIRD MEMBER. THIS WILL BE THE FLAT SURFACE WHERE THE U-BOLT HOLE IS DRILLED.</td> </tr> <tr> <td valign="top"> </td> <td>“Y” MEASUREMENT IS THE LENGTH OF THE OUTPUT SHAFT PROTRUSION.</td> </tr> <tr> <td colspan="2"><center></center></td> </tr> <tr> <td>X: </td> <td><input name="X" style="width: 100px;" type="text"></td> </tr> <tr> <td>Y: </td> <td><input name="Y" style="width: 100px;" type="text"></td> </tr> </tbody></table> <table class="header" width="730" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td>Tranmission Make & Model:</td> <td><input name="trans_make/model" style="width: 180px;" type="text"></td> <td> Differential Make & Model:</td> <td><input name="diff_make/model" style="width: 180px;" type="text"></td> </tr> </tbody></table> <table class="header" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td>NOTE: TH400 TRANS OUTPUT SHAFT </td> <td><input name="trans_output_shaft" value="drilled" type="radio"></td> <td>DRILLED AND TAPPED </td> <td><input name="trans_output_shaft" value="undrilled" type="radio"></td> <td>OR UNDRILLED</td> </tr> </tbody></table> <!--<td class="2" align="center" width="102">SALES PRICE</td>--> <!--<td class="5" align="center"><input type="text" name="driveshaft_price" style="width:100px;"></td>--> <!--<td class="2" align="center" width="102">SALES PRICE</td>--> <!--<td class="5" align="center"><input type="text" name="ujoint_price" style="width:100px;"></td>--> <!--<td class="5" align="center"><input type="text" name="pinion_price" style="width:100px;"></td>--> <!--<td class="5" align="center"><input type="text" name="trans_price" style="width:100px;"></td>--> <!--<td class="5" align="center"><input type="text" name="trans_price" style="width:100px;"></td>--> <!--<td class="5" align="center"> </td>--> <table class="small" width="730" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td>COMPLETE DRIVESHAFTS</td> <td class="4" width="152" align="center">PART NUMBER</td> </tr> <tr> <td class="1">Please build <input name="build_driveshafts" style="width: 40px;" type="text"> <input name="material" value="alum" type="radio"> Aluminum <input name="material" value="steel" type="radio"> Steel driveshaft(s) as indicated above</td> <td class="3" align="center"><input name="driveshaft_partnum" style="width: 150px;" type="text"></td> </tr> <tr> <td class="1"><input name="blower?" value="YES" type="checkbox"> BLOWER? <input name="nitrous?" value="YES" type="checkbox"> NITROUS? HORSEPOWER: <input name="horsepower" style="width: 40px;" type="text"></td> <td class="3" align="center"> </td> </tr> <tr> <td colspan="2"> </td> </tr> <tr> <td>INDIVIDUAL PARTS</td> <td class="4" width="152" align="center"> </td> </tr> <tr> <td class="1">SOLID CROSS U-JOINTS - Please send me <input name="build_ujoints" style="width: 40px;" type="text"> U-Joints</td> <td class="3" align="center"><input name="ujoint_partnum" style="width: 150px;" type="text"></td> </tr> <tr> <td class="1">PINION YOKES - Please send me <input name="build_pinions" style="width: 40px;" type="text"> Pinion Yokes</td> <td class="3" align="center"><input name="pinion_partnum" style="width: 150px;" type="text"></td> </tr> <tr> <td class="1">TRANSMISSION YOKES - Please send me <input name="build_trans" style="width: 40px;" type="text"> Transmission Yokes</td> <td class="3" align="center"><input name="trans_partnum" style="width: 150px;" type="text"></td> </tr> <tr> <td class="1">CENTER SUPPORTS - Please send me <input name="build_trans" style="width: 40px;" type="text"> Center Supports</td> <td class="3" align="center"><input name="trans_partnum" style="width: 150px;" type="text"></td> </tr> <tr> <td class="1"> Veh. Yr. <input name="veh_year" style="width: 40px;" type="text"> Make <input name="make" style="width: 120px;" type="text"> Model <input name="x" style="width: 120px;" type="text"></td> <td class="3" align="center"> </td> </tr> <!--<tr> <td class="6" colspan="2" align="right">NOTE: Shipping and, if applicable, State Sales Tax will be added - My estimate total is: </td> <td class="5" align="center"><input type="text" name="est_total" style="width:100px;"></td> </tr>--> </tbody></table> NOTE: Shipping address must be a physical location, not a PO Box <table class="normal" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td>NAME: </td> <td><input name="required-name" style="width: 300px;" type="text"></td> </tr> <tr> <td>ADDRESS: </td> <td><input name="required-address" style="width: 300px;" type="text"></td> </tr> <tr> <td>CITY, ST ZIP: </td> <td><input name="required-city" style="width: 168px;" type="text">, <input name="required-state" style="width: 40px;" type="text"> <input name="required-zip" style="width: 80px;" type="text"></td> </tr> <tr> <td>PHONE: </td> <td><input name="required-phone" style="width: 130px;" type="text"></td> </tr> <tr> <td>EMAIL: </td> <td><input name="email" style="width: 200px;" type="text"></td> </tr> <tr> <td>CARD TYPE: </td> <td class="small"><input name="card_type" value="VS" type="radio"> Visa <input name="card_type" value="MC" type="radio"> MasterCard <input name="card_type" value="AM" type="radio"> American Express </td> </tr> <tr> <td>NUMBER: </td> <td><input name="card_num" style="width: 200px;" type="text"></td> </tr> <tr> <td>EXPIRATION </td> <td><input name="card_expmo" style="width: 40px;" type="text"> / <input name="card_expyr" style="width: 40px;" type="text"></td> </tr> </tbody></table> Your credit card will not be billed until you have received a price quote and confirmed your order. <input value="Submit" type="submit"> [FONT=arial, helvetica]Return to Inland Empire Driveline Service homepage.[/FONT]
I just had this done and the shop said if I measure from the yoke they will subtract 1" and if I pull the yoke out 1" and give them that measurement they will make it to that lenght.
at my shop its seal too center with the car at ride height ((car on the ground or jacked up under the rear till tires are off the ground
The Jalopy Journal
