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Toyota Driveshaft Spacers

4Crawler Offroad Products

a division of Visual Diagnostics LLC

Visitor # 724 since 05.MAR.2008

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NOTE: 4Crawler Offroad/MissingLinkZ will be on reduced operations until 07.JUL.2008. New orders may not be processed until that date and e-mail response may be delayed. Stay tuned to this page for updates.

Introduction:

On the Toyota 4WD pickups and 4Runners, the front and rear drive shaft bolt to "companion" flanges on the transfer case with a mating flange on the driveshaft. Up until now, the only way to make a driveshaft longer was to remove it and have a drive line shop cut the existing tubing off the driveshaft and weld on a new length of tubing. If you needed a significant change in length, this was not so bad to do. But often, you only needed to lengthen the shaft a small amount, from 3/4" to 1-1/2" for example. Since you had pay for a whole new length of driveshaft tubing (plus the labor to install it) and not just the additional inch or so of additional tubing, it could cost hundreds of dollars to have a shaft lengthened, even a short amount.

What are some indications that your driveshaft is too short?

Ideally, you only want just a little more slip yoke compression travel than needed by the change in driveshaft length as the suspenion fully compresses. How much is that? It is hard to give an exact answer, as every vehicle is different. Generally a rear driveshaft needs less slip yoke travel than a front driveshaft. A longer driveshaft generally needs less slip yoke travel than a shorter one. A driveshaft that is at a flatter angle will generally need less trravel than one at a steeper angle.

So how do you determine how much slip yoke travel you need on your vehicle?

Generally having too much slip yoke compression travel is better than not enough. Whatever you do, you do not want the driveshaft to "bottom out", as that can cause severe damage to the transfer case, as it will take the brunt of the impact should the slip yoke compress fully. But if you have so much slip yoke pull apart that it separates or vibrates is no good either. Until now there has only bee one solution, that is to have the shaft physically lengthened at considerable expense. Byt now available for the Toyota 4WD trucks is a simple bolt-on spacer that fits the 3 common driveshaft bolt patterns and typical applications:

Bolt Pattern Typical Application
60mm x 60mm x 8mm 1979-1983 U-Joint (see notes below *)
60mm x 60mm x 10mm 1984-1995 U-Joint
60mm x 68.5mm x 10mm 1984-1995 CV Joint/4cyl
61.5mm x 70mm x 10mm 1988-1995 CV Joint/V6

The spacers are ~4.25" in diameter and include 4 - 10mm (or 8mm) metric grade 12.9 mounting bolts and lock nuts to replace the stock mounting bolts. These spacers may fit other Toyota driveshaft flanges. To check if your's will work, measure the center-center bolt hole spacing and compare to the above dimensions and see if you match up with one of the 3 bolt patterns,

* Notes:

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NOTE: 4Crawler Offroad/MissingLinkZ will be on reduced operations until 07.JUL.2008. New orders may not be processed until that date and e-mail response may be delayed. Stay tuned to this page for updates.

On-Line Ordering:

Order a drive shaft spacer below:

0.75" Driveshaft Spacer 1.00" Driveshaft Spacer 1.25" Driveshaft Spacer 1.50" Driveshaft Spacer
0.75" Spacer; US$65.00 1.00" Spacer; US$68.00 1.25" Spacer; US$71.00 1.50" Spacer; US$74.00


US Delivery; $7.00


US Delivery; $7.00


US Delivery; $7.00


US Delivery; $7.00


International Delivery; $12.00


International Delivery; $12.00


International Delivery; $12.00


International Delivery; $12.00

Notes:

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Returns Policy:

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Installation Instructions:

Installed spacer
Installed spacer on transfer case
output flange

Allow approximately 30 minutes for the installation, assuming you don't run into any rusted or damaged fasteners.

While you should not have to separate the drive shaft to install the spacer, it is a good idea to put an alignment mark across both sides of the slip yoke. Some white paint works well and will help you re-align the slip yoke if you accidentally pull it apart.

Typically, the stock drive shaft (a.k.a. propeller shaft) flange bolts use a 14mm head, so you'll need a pair of 14mm combination wrenches to remove those. For the rear driveshaft, block the vehicle's tires or place the rear axle on jack stands for easier removal. You can place the transmission in neutral and release the parking brake if needed.

Break the stock flange bolts loose at the transfer case and then remove them. Support the driveshaft before removing the last bolt to keep it from falling. Then compress the slip yoke enough to allow insertion of the spacer. Then slip the spacer in between the transfer case output flange and the driveshaft flange and turn it to make sure you have the proper set of 4 bolt holes in alignment. Slip in one of the supplied metric socket head cab screws, a lock nut and washer (if needed). Repeat for the other 3 bolt holes, just to make sure all 4 bolts are installed before tightening them. If you find the bolts hard to install, use a small round file to clean out the insides of the holes in the flanges to make installation easier.

Once all 4 bolts are in place, alternately snug them down with an 8mm allen key (a long handled key is recommended) and a 17mm wrench (for the nut). Once all 4 nuts are snugged down, torque the nuts to approx. 45 ft.lbs. and re-check the torque after 50-100 miles of driving.

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[Last updated: 02.July.2008]

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