Springs, new larger tires & gear ratios - Land Rovers Only

BA-94LWB · 02-18-2006, 10:14 AM

I have been a member here for ahile and I am still trying to undertand something I read here. My situation is I am driving a 94 LWB with the EAS removed. I want with a 3" lift so I am about 1 1/2" over max height if the EAS was still in. It is time for new tires. Currently running Michellin Synchro's 205/80/16. I would like to go with a 235/70/16 AT of some type. Here is where I am lost. Will this additional 1 1/4 - 1 1/2" of height srew me over as far as gear ratios and drive shafts go? This is my daily driver so no off road to speak of. I would apprecaite any insight.

Thanks,

Brien

jhmover · 02-18-2006, 10:50 AM

Per an online tire calculator theres 0.04" difference in the diameter of the tires so the difference will be nil.

RageRover · 02-18-2006, 04:52 PM

Speaking of gear ratios, what gears to I have in my RRC LWB?

llesra · 02-18-2006, 06:09 PM

i think rrcs have a gear ratio of 3.54. a 235/70/16 is only 0.1" taller, .8" wider, and has a circumference 0.2" bigger than a 205/80/16 so you wont have to worry about gears being off. a 3" lift may cause driveshaft vibrations so keep that in mind. the steering caster will be off so it would be wise to invest in a set of new radius arms if you feel the steering is uncomfortable.

RageRover · 02-18-2006, 06:51 PM

So when a lift is applied to let's say my RRC, and driveshaft vibration occurs, what would happen during highway driving? I'd also think that U-joints would be a frequent replacement part also.

Along with that lift question, should I only consider a 2" lift over 3", for driveshaft reasons and steering reasons?

I haven't done much lifting to coil spring suspension vehicles for awhile, only did shackles for leaf-spring lifts.

Funrover · 02-18-2006, 07:49 PM

Same rules apply for leafs as coils!!! Pinion angles etc change!!! The 2" is a great lift.. I have it on my RRC!!! No problem from it at all!!

Funrover · 02-18-2006, 07:50 PM

Quote:

Originally Posted by RageRover

Speaking of gear ratios, what gears to I have in my RRC LWB?

3:54.1

BA-94LWB · 02-18-2006, 08:13 PM

Thanks for all of the input. I appreciate it. The reason this became a concern was when I was on the phone with Tire Rack I was informed going from the 205/80/16 to a 235/70/16 would be a 1 1/4 to 1 1/2" increase in diameter. Since I am running a Big Blue 3" lift I was concerned about possible problems. Obviously the difference is almost nothing. The tire calculator was a huge help. The lift has been on since October and no vibration or steering issues at all. Thanks again for your help. FYI - The new tires Bridgestone Dueller A/T Revo's.

RageRover · 02-18-2006, 11:44 PM

Quote:

Originally Posted by Funrover

Same rules apply for leafs as coils!!! Pinion angles etc change!!! The 2" is a great lift.. I have it on my RRC!!! No problem from it at all!!

So all you did was replace springs and shocks, without removing/replacing anything else?

Thanks for the gear ratio too!

02-18-2006, 10:14 AM	#1 (permalink)
BA-94LWB Member Join Date: Aug 2005 Location: Milwaukee, WI Posts: 22 Gallery: 0	Springs, new larger tires & gear ratios I have been a member here for ahile and I am still trying to undertand something I read here. My situation is I am driving a 94 LWB with the EAS removed. I want with a 3" lift so I am about 1 1/2" over max height if the EAS was still in. It is time for new tires. Currently running Michellin Synchro's 205/80/16. I would like to go with a 235/70/16 AT of some type. Here is where I am lost. Will this additional 1 1/4 - 1 1/2" of height srew me over as far as gear ratios and drive shafts go? This is my daily driver so no off road to speak of. I would apprecaite any insight. Thanks, Brien __________________ "When the going gets weird, the weird turn pro" - Hunter S. Thompson

02-18-2006, 04:52 PM	#3 (permalink)
RageRover Crazy about Rovers and more... Join Date: Dec 2005 Location: Westland, MI Posts: 2,889 Gallery: 0	Speaking of gear ratios, what gears to I have in my RRC LWB? __________________ Pat Albaugh, Midwest Moderator "Diffage" -the point at which the truck's differential makes contact with the ground. http://www.cardomain.com/id/RageRover42Visit my RRC and others here!(updated as of September 15, 2006) 1995 RRC LWB -LT265/75R16 Pathfinder All Terrains -RTE 2" Lift Springs -Pro Comp ES9000 Shocks (from DAP Enterprises) -KMC Front Diff Guard -4 Desert Fox 55 watt Lighting -Radio Shack CB Radio (never know when signal fails on a cell phone) -2 Halogen Super Sport 100 watt forward lights -Custom slim style front bumper w/ integrated bull bar -Lowe's Special "Homemade" Snorkel -T-Case out of an 92' RRC

02-18-2006, 06:09 PM	#4 (permalink)
llesra ภาษาไทย Join Date: Apr 2005 Location: Colorado Posts: 1,161 Gallery: 16	i think rrcs have a gear ratio of 3.54. a 235/70/16 is only 0.1" taller, .8" wider, and has a circumference 0.2" bigger than a 205/80/16 so you wont have to worry about gears being off. a 3" lift may cause driveshaft vibrations so keep that in mind. the steering caster will be off so it would be wise to invest in a set of new radius arms if you feel the steering is uncomfortable. __________________ Arsell My Car Domain Site Last edited by llesra : 02-18-2006 at 08:23 PM.

02-18-2006, 06:51 PM	#5 (permalink)
RageRover Crazy about Rovers and more... Join Date: Dec 2005 Location: Westland, MI Posts: 2,889 Gallery: 0	So when a lift is applied to let's say my RRC, and driveshaft vibration occurs, what would happen during highway driving? I'd also think that U-joints would be a frequent replacement part also. Along with that lift question, should I only consider a 2" lift over 3", for driveshaft reasons and steering reasons? I haven't done much lifting to coil spring suspension vehicles for awhile, only did shackles for leaf-spring lifts. __________________ Pat Albaugh, Midwest Moderator "Diffage" -the point at which the truck's differential makes contact with the ground. http://www.cardomain.com/id/RageRover42Visit my RRC and others here!(updated as of September 15, 2006) 1995 RRC LWB -LT265/75R16 Pathfinder All Terrains -RTE 2" Lift Springs -Pro Comp ES9000 Shocks (from DAP Enterprises) -KMC Front Diff Guard -4 Desert Fox 55 watt Lighting -Radio Shack CB Radio (never know when signal fails on a cell phone) -2 Halogen Super Sport 100 watt forward lights -Custom slim style front bumper w/ integrated bull bar -Lowe's Special "Homemade" Snorkel -T-Case out of an 92' RRC

02-18-2006, 08:13 PM	#8 (permalink)
BA-94LWB Member Join Date: Aug 2005 Location: Milwaukee, WI Posts: 22 Gallery: 0	Thanks for all of the input. I appreciate it. The reason this became a concern was when I was on the phone with Tire Rack I was informed going from the 205/80/16 to a 235/70/16 would be a 1 1/4 to 1 1/2" increase in diameter. Since I am running a Big Blue 3" lift I was concerned about possible problems. Obviously the difference is almost nothing. The tire calculator was a huge help. The lift has been on since October and no vibration or steering issues at all. Thanks again for your help. FYI - The new tires Bridgestone Dueller A/T Revo's. __________________ "When the going gets weird, the weird turn pro" - Hunter S. Thompson

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02-18-2006, 10:50 AM	#2 (permalink)
jhmover Senior Member Join Date: Aug 2005 Posts: 310 Gallery: 0	Per an online tire calculator theres 0.04" difference in the diameter of the tires so the difference will be nil.

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