mackr1989 Posted June 21, 2015 Share Posted June 21, 2015 We have an 89 rd690sx 10 whlr dump truck that has an 18k front and 58k rears. The front axle has 3 springs and sits rather low. I want to add a spacer to the front springs but don't know if I should go with a 3 inch or 4. I want more ground clearance and I'd like it to sit tall but I don't want it to look like it's leaning backwards. Which size should I go with? Quote Link to comment https://www.bigmacktrucks.com/topic/40581-front-spring-spacer/ Share on other sites More sharing options...
Dirtymilkman Posted June 21, 2015 Share Posted June 21, 2015 Even 3" is a lot Quote Link to comment https://www.bigmacktrucks.com/topic/40581-front-spring-spacer/#findComment-294127 Share on other sites More sharing options...
MACKS Posted June 21, 2015 Share Posted June 21, 2015 Even 3" is a lotIve seen some pretty tall spacers on those three leaf springs,I would check with a spring shop they will know and you can buy the spacer and u bolts from them. Quote Link to comment https://www.bigmacktrucks.com/topic/40581-front-spring-spacer/#findComment-294132 Share on other sites More sharing options...
Timmyb Posted June 22, 2015 Share Posted June 22, 2015 I would try and get it sitting level then maybe add 1/2inch or an inch. Don't think that much will give you any trouble. Depending on how low it is now and how much you raise it you may need new U bolts. Quote Link to comment https://www.bigmacktrucks.com/topic/40581-front-spring-spacer/#findComment-294241 Share on other sites More sharing options...
mrsmackpaul Posted June 22, 2015 Share Posted June 22, 2015 could you just pull the springs out and reset them in a press just measure length they need to be and rest them to that just press every few inches till its the right shape and Bobs your uncle no special spring spacers and U bolts just time Paul Quote Link to comment https://www.bigmacktrucks.com/topic/40581-front-spring-spacer/#findComment-294246 Share on other sites More sharing options...
85snowdog Posted June 23, 2015 Share Posted June 23, 2015 I don't know if this helps……...1988 R688 with 14,300 front axle - 3 Leaves …. 3 inch block1986 RD688 with 18,000 front axle - 4 leaves……4 inch blockI'm 98 percent sure thats how both trucks cam from the factory. In my opinion, they both sit perfect.Keith Quote Keith Link to comment https://www.bigmacktrucks.com/topic/40581-front-spring-spacer/#findComment-294325 Share on other sites More sharing options...
2006Largecar Posted June 25, 2015 Share Posted June 25, 2015 If it was me, i would put the truck on a level surface. I would then use a level or an angle finder to measure the pitch of the frame rail. Take a measurement from a spot on the frame somewhere over the steer axle to the floor. Then jack the front of the truck so it has the desired pitch, and take another measurement from that same point you used earlier. Then subtract the two, and that should give you a pretty good idea of what block would be the best fit. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/40581-front-spring-spacer/#findComment-294621 Share on other sites More sharing options...
rsb502 Posted July 4, 2015 Share Posted July 4, 2015 I didn't know you could get 3 leaf taperleaf in an 18k rating in 88. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/40581-front-spring-spacer/#findComment-295505 Share on other sites More sharing options...
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