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Discussion Starter #1
Hello everyone i am brand new to the site. I've owned my 87 sam for about a year and a half now. its a bus body. standard height but with a 1.6 tracker motor in it. I love the little thing. it came a good snow this past weekend and i probably ran 80 dollars worth of gas through it playing around! It was a blast though!!! but anyways moving on........ i am about to do a spoa lift on it. i am a machinist by trade and instead of buying a kit i'm making mine. i have the leaf hangers done. and i also have my pittman arm made. i need some help about the driveshaft spacers. i've noticed on alot of bolt on kits they come with either 3/4 or 1" long spacers. its just gonna be a 4 1/2" lift. which length would be the best. and does anyone know what the o.d. (outside diameter) of the spacers needs to be. and also what the bolt pattern is? i would really appreciate some help. I hope to have it lifted in the next 2 weeks. thanks in advance!
 

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Either spacer would do fine. It might also be a good idea to buy/build a set of 3/4" and a set of 1" spacers so that you can "split the difference" on the overall spacer distance. Put a 1" spacer on one end and a 3/4" spacer on the other end. You can also put the 1" spacers on the rear to compensate for the travel in the short driveshaft while using 3/4" spacers on the longer front driveshaft.

If you have a lathe, you should be able to pick the diameters off the end of your driveshaft flange and turn them into the face of your spacers. The bolt pattern should be simple to duplicate once you have turned the faces of the spacer to fit to the flange. I wish I had a lathe... :(

Otherwise, it is simpler to buy two sets of spacers. Most all of the major vendors sell them. LowRange Offroad would be a good vendor choice.

An important thing to note about the spring perches: the passenger's side perch will need a larger radius cut into its inside face as the perch actually sits on the sloping side of the differential housing.

I hope that this helps!
 

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Discussion Starter #3
thanks for replying ack. yea i do have a lathe. my original plan was to just caliper the end of the drive shaft then go off of the bolt pattern once i have them taken apart. i was just hoping that maybe someone had already done what i'm going to do and could just give me the measurements. This way i could already have the spacers complete before i even tear my zuki apart. but its not that big of a deal.. aluminium machines excellent, so it will be a quick job. one thing i did not know was to put a 3/4" in the rear and a 1" in the front, thanks for the help. and as far as the spring perches, i just put the standard 2.5" radius in them. i will have to get a closer look at what you were talking about once i get the axles pulled out from under it. you sound very knowledgeable on these little rides. i may be bugging you alot once i get mine tore apart. one other quick question. would you advise making new shock mounts and using stock length shocks, or just using a longer shock? i'm not really gonna be mudding and hill climbing hardcore or anything. it is my hunting vehicle and i will be doing a little offroading, but nothing to extreme. i just want a little more ground clearance. i would buy a bolt on kit, but 5, 6, 700 dollars is just a little more then i want to put into it. i've examined them alot both in person and on the net. i believe my kit will be up to safety standards and quality of alot of the other companies. once agian thanks for the advice!!
 
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