Dobinsons Monotube Suspension Kit 4inch Suitable For N80

Fitting available in Warwick Farm, Sydney. We can supply and fit this at our own workshop, MB Mechanical Repairs — 13 C/4 Homepride Ave, Warwick Farm NSW 2170 (Liverpool), in the trade since 2011. Fitting a full suspension kit — nitro gas, monotube, MRR or MRA — typically runs $750–$950 in labour, on top of the price of the kit. A wheel alignment afterwards is $120 on top of the labour, and on a lifted vehicle it is not optional. Call 02 8747 0325 or get in touch for a firm quote.

A complete four-inch Dobinsons Monotube suspension package for the Toyota Hilux N80 (2015 on). Everything in one box — shocks, springs, leaf packs, bushes, upper control arms and a diff drop — matched as a set rather than bolted together out of whatever was on the shelf.

A monotube runs a single tube with the oil and the gas separated by a floating piston, which is what lets it use a bigger piston and get rid of heat properly. These are built with a 3mm steel wall and a 50mm bore, with variable velocity valving — the damping firms up as the shaft moves faster, so it stays comfortable over small stuff and still has something left when you hit a washout at speed. The front shocks are coil preload adjustable, so ride height can be set to suit the weight actually sitting over the front end rather than being fixed by the spring.

The rear runs parabolic leaf springs rather than a conventional multi-leaf pack. Fewer, tapered leaves with less friction between them, so the back end rides noticeably better unladen — which matters if the ute spends most of its week empty and only gets loaded at the weekend.

What's in the kit

• 2 × custom built Monotube front shock absorbers — 3mm steel wall, 50mm bore, variable velocity valving, 4″ lift, coil preload adjustable for ride height
• 2 × Dobinsons coilover ‘C’ adjuster spanners
• 2 × Dobinsons front coil springs
• 2 × custom built Monotube rear shock absorbers — 3mm steel wall, 50mm bore, variable velocity valving
• 2 × Dobinsons parabolic leaf springs
• 4 × Dobinsons U-bolts
• 1 × Dobinsons polyurethane bush kit (leaf spring)
• 2 × greasable shackles and pins
• 2 × Blackhawk upper control arms, 3° caster correction
• 1 × Phat Bars diff drop kit

The arms and the diff drop are not generic filler — they are Blackhawk and Phat Bars, both of which we sell on their own and both of which we fit every week. The Blackhawk arms carry 3° of caster correction, which is what puts the steering feel back where it belongs after the front comes up. Photos of both are in the gallery above.

Worth knowing before you buy — CV boots

We would rather tell you this up front than have you find out later. At four inches of lift on an independent front end, the CV shafts run at a steeper angle than Toyota designed them for. The first thing to complain is usually the CV boot: it tears, the grease gets thrown out, dirt and water get in, and the joint itself is not far behind.

That is exactly why this kit ships with the Phat Bars diff drop and the Blackhawk arms. They pull the angles back toward standard — but they reduce the problem rather than remove it. Check your boots at every service, replace one the moment it splits rather than waiting, don't wind the adjustable front any higher than you actually need, and get the alignment done properly once the springs have settled.

If four inches is more than you need, come and talk to us — a smaller lift asks far less of the front end, and we would rather sell you the right kit than the biggest one.

Supply and fit at our own workshop

We are not just an online parts shop. MyTuff4x4 runs a fully equipped mechanical workshop at 13 C/4 Homepride Ave, Warwick Farm NSW 2170, a few minutes from Liverpool in south-west Sydney. Buy the kit here and we will fit it, set the ride height and align it for you, or order it and have it sent anywhere in Australia. Call 02 8747 0325 if you want to talk through spring rates for the weight you carry before you order.